Nilson, T. 1977. A theory of radiation penetration into nonhomogeneous plant canopies. The Penetration of Solar Radiation into Plant Canopies. Estonian Acad. Sci., Inst. Phys. Astron., Tartu, 5-70. (Russian)
Nilson, T., Ross, V., and Ross, J. 1977. Some problems on the architecture of plants and plant canopies. The penetration of solar radiation into plant canopies. Estonian Acad. Sci., Inst. Phys. Astron., Tartu, 71-144. (Russian)
Ross, J.K., Kuusk, A.E., and Nilson, T.A. 1988. The bases of quantitative theory of plant cover brightness. L.N. Vasiljev (Ed.). Remote sensing of soil and vegetation. Sborník Prací 17, Československá akademie věd, Geografický ústav, Brno, 15-33. (Russian)
Ross, J.K., Kuusk, A.E., and Nilson, T.A. 1988. The bases of quantitative theory of plant cover brightness. A.A. Nitchiporovitch (Ed.). Photosynthesis and production, Nauka, Moscow, 187-198. (Russian)
Nilson, T. 1991. Approximate analytical methods for calculating the reflection functions of leaf canopies in remote sensing applications. R.B. Myneni and J. Ross (Eds.). Photon-Vegetation Interactions. Applications in Optical Remote Sensing and Plant Ecology Springer Verlag, Berlin, 161-190.
Nilson, T. 1992. Radiative transfer in nonhomogeneous plant canopies. G. Stanhill (Ed.). Advances in Bioclimatology, 1, Springer-Verlag, 59-88.
Ross, J., Knyazikhin, J., Kuusk, A., Marshak, A., and Nilson, T. 1992. Mathematical Modeling of the Solar Radiation Transfer in Plant Canopies. Gidrometeoizdat, St. Petersburg, 195 pp. (Russian)
Desjardins, R.L., Gifford, R.M., Nilson, T., and Greenwood, E.A.N. 1992. Advances in Bioclimatology. 1. Springer-Verlag, Berlin, 157 pp.
Nilson, T. 1994. Metsade kaugseire alused. (Metsanduslikud mudelid; 1). Eesti Metsaamet, Eesti Põllumajandusülikool, Metsakorralduse Instituut, Tartu, 160 lk.
Nilson, T. and Ross, J. 1997. Modeling radiative transfer through forest canopies: Implications for canopy photosynthesis and remote sensing. H. L. Gholz, K. Nakane, and H. Shimoda (Eds.). The Use of Remote Sensing in the Modeling of Forest Productivity, Kluwer, Dordrecht, 23-60.
Nilson, T., Rautiainen, M., Pisek, J., and Peterson, U. 2012. Seasonal reflectance courses of forests. Dr. Andrew A. Oteng-Amoako (Ed.). New Advances and Contributions to Forestry Research. InTech, 33-58.
Laisk, A., Moldau, H., Nilson, T., Ross, J., and Tooming, H. 1971. On the modelling of the productivity of the plant cover. Botanical Journal, 56 (6), 761-776. (Russian)
Nilson, T. 1971. A theoretical analysis of the frequency of gaps in plant stands, Agricult. Meteorol., 8, 25-38.
Nilson, T.A., Anton, J.A., Aplei, V.B., Kõdar, J.J., Ross, V.A., and Ross, J.K. 1982. On estimation of cereals maturity stage by remote sensing. Earth Res. from Space, 1: 41-47. (Russian)
Nilson, T.A., Anton, J.A., and Aplei, V.B. 1983. seasonal course of spectral reflectance coefficients of barley and rye canopies. Earth Res. from Space, 5: 72-80. (Russian)
Salminen, R., Nilson, T., Hari, P., Kaipiainen, L., and Ross, J. 1983. A comparison of different methods for measuring the canopy light regime. J. Appl. Ecology, 20, 897-904.
Nilson, T. and Kuusk, A. 1984. Approximate analytic relationships for the reflectance of agricultural vegetation canopies. Earth Res. from Space, 5, 76-83. (Russian)
Kuusk, A., Anton, J., Nilson, T., Peterson, U., Ross, K., Ross, J., and Savihhin, A. 1984. Reflection indicatrices of vegetation covers. Earth Res. from Space, 5, 68-75. (Russian)
Hari, P., Nilson, T., Salminen, R., Kaipiainen, L., Korpilahti, E., and Ross, J. 1984. Nonlinear dependence of photosynthetic rate on irradiance and its consequences for estimates of the amount of saccharides formed. Photosynthetica, 18(1), 28-33.
Nilson, T. and Kuusk, A. 1985. Approximate analytic relationships for the reflectance of agricultural vegetation canopies. Sov. J. Remote Sens., 4, 814-826.
Kuusk, A., Anton, J., Nilson, T., Peterson, U., Ross, K., Ross, J., and Savihhin, A. 1985. Reflection indicatrices of vegetation covers. Sov. J. Remote Sens., 4(5), 802-813.
Ross, J.K., Galinis, A.A., Nilson, T.A., and Ross, K.J. 1986. Effect of liming on soil reflectance. Earth Res. from Space, 6, 84-88. (Russian)
Tullus, H.H., Nilson, T.A., and Tamm, Yu.A. 1988. Regime of diffuse radiation in a medium-aged Scots pine forest after thinning. Lesovedeniye, 3, 48-55. (Russian)
Nilson, T. 1988. Linear transforms of spectral reflectance data in the analysis of crops. Earth Res. from Space, 1, 95-103. (Russian)
Nilson, T., Roostalu, H., Kõdar, J., and Ross, J. 1988. Correlation between barley yield and spectral reflectance at successive growth stages, Earth Res. from Space, 3, 67-73. (Russian)
Nilson, T. and Kuusk, A. 1989. A reflectance model for the homogeneous plant canopy and its inversion. Remote Sens. Environ., 27(2), 157-167.
Nilson, T. 1990. A forest canopy reflectance model. Earth Res. from Space 3, 63-72. (Russian)
Ross, Y.K., Golinis, A.A., Nilson, T.A., and Ross, K.Y. 1990. Effect of liming on soil reflectance. Sov. J. Remote Sens., 6(6), 1003-1011.
Nilson T., Peterson U. 1991. A forest canopy reflectance model and a test case. Remote Sens. Environ., 37(2), 131-142.
Herbert, T.J. and Nilson, T. 1991. A model of variance of photosynthesis between leaves and maximization of whole plant photosynthesis. Photosynthetica, 25, 597-606.
Peterson, U., Nilson, T. 1993. Successional reflectance trajectories in northern temperate forests. Int. J. Remote Sens., 14(3), 609-613.
Nilson, T. and Peterson, U. 1994. Age dependence of forest reflectance - analysis of main driving factors. Remote Sens. Environ., 48(3), 319-331.
Nilson, T. and Olsson, H. 1995. Effect of thinning cutting on boreal forest reflectance: A comparison of simulations and Landsat TM estimates. Int. J. Remote Sens., 16(15), 2963-2968.
Nilson, T. 1997. A BRDF model for forests, J. of Remote Sensing, 1, Suppl., 77-81.
Nilson T., Anniste J., Lang M., and Praks J. 1999. Determination of needle area indices of coniferous forest canopies in the NOPEX region by ground-based optical measurements and satellite images. Agricultural & Forest Meteorology, 98-99, 449-462.
Nilson, T. 1999. Inversion of gap frequency data in forest stands. Agricultural & Forest Meteorology, 98-99, 437-448.
Nilson, T., Kuusk, A., Anniste, J., and Praks, J. 1999. Forest ecosystem radiation model (FERM). Agricultural and Forest Meteorology, 98-99. Documented dataset on appended CD.
Kuusk, A., Nilson, T. 2000. A directional multispectral forest reflectance model. Remote Sensing of Environment, 72(2), 244-252.
Chen, J.M., Li, X., Nilson, T., and Strahler, A. 2000. Recent advances in geometrical optical modelling and its applications, Remote Sensing Reviews, 18(2-4), 227-262.
Nilson, T., Olsson, H., Anniste, J., Lükk, T., and Praks, J. 2001. Thinning-caused change in reflectance of ground vegetation in boreal forest, International Journal of Remote Sensing, 22(14), 2763-2776.
Kuusk, A. and Nilson, T. 2001. Testing directional properties of a forest reflectance model, J. Geophys. Res. - Atmospheres, 106(D11), 12011-12021.
Kuusk, A., Nilson, T., and Paas, M. 2002. Angular distribution of radiation beneath forest canopies using a CCD-radiometer, Agricultural and Forest Meteorology, 110(4), 259-273.
Stenberg, P., Nilson, T., Smolander, H., and Voipio, P. 2003. Gap fraction based estimation of LAI in Scots pine stands subjected to experimental removal of branches and stems, Can. J. Remote Sensing, 29(3), 363-370.
Rautiainen, M., Stenberg, P., Nilson, T., Kuusk, A., and Smolander, H. 2003. Application of a forest reflectance model in estimating leaf area index of Scots pine stands using Landsat-7 ETM reflectance data. Can. J. Remote Sensing, 29(3), 314-323.
Nilson, T., Kuusk, A., Lang, M., and Lükk, T. 2003. Forest reflectance modeling: Theoretical aspects and applications. Ambio, 32(8), 535-541.
Pinty, B., Widlowski, J.L., Taberner, M., Gobron, N., Verstraete, M.M., Disney, M., Gascon, F., Gastellu, J.P., Jiang, L., Kuusk, A., Lewis, P., Li, X., Ni-Meister, W., Nilson, T., North, P., Qin, W., Su, L., Tang, S., Thompson, R., Verhoef, W., Wang, H., Wang, J., Yan, G., and Zang, H. 2004. Radiation transfer model intercomparison (RAMI) exercise: Results from the second phase - art. no. D06210, Journal of Geophysical Research-Atmospheres, 109(D6), 6210-6210.
Nilson, T., Kuusk, A. 2004. Improved algorithm for estimating canopy indices from gap fraction data in forest canopies. Agricultural and Forest Meteorology, 124(3-4), 157-169.
Kuusk, A., Lang, M., and Nilson, T. 2004. Simulation of the reflectance of ground vegetation in sub-boreal forests. Agricultural and Forest Meteorology, 126(1-2), 33-46.
Rautiainen, M., Stenberg, P., Nilson, T., and Kuusk, A. 2004. The effect of crown shape on the reflectance of coniferous stands, Remote Sensing of Environment, 89(1), 41-52.
Rautiainen, M., Stenberg, P., and Nilson, T. 2005. Estimating canopy cover in Scots pine stands. Silva Fennica, 39(1), 137-142.
Eriksson, H.M., Eklundh, L., Kuusk, A., and Nilson, T. 2006. Impact of understory vegetation on forest canopy reflectance and remotely sensed LAI estimates. Remote Sensing of Environment, 103(4), 408-418.
Nilson, T., Lükk, T., Suviste, S., Kadarik, H., and Eenmäe, A. 2007. Calibration of time series of satellite images to study the seasonal course of forest reflectance. Proc. Estonian Acad. Sci. Biol. Ecol., 56(1), 5-18.
Lang, M., Nilson, T., Kuusk, A., Kiviste, A., and Hordo, M. 2007. The performance of foliage mass and crown radius models in forming the input of a forest reflectance model: A test on forest growth sample plots and Landsat 7 ETM+ images. Remote Sensing of Environment, 110(4), 445-457.
Kuusk, A., Nilson, T., Paas, M., Lang, M., and Kuusk, J. 2008. Validation of the forest radiative transfer model FRT. Remote Sensing of Environment, 112(1), 51-58.
Rautiainen, M., Lang, M., Mõttus, M., Kuusk, A., Nilson, T., Kuusk, J., and Lükk, T. 2008. Multi-angular reflectance properties of a hemiboreal forest: An analysis using CHRIS PROBA data. Remote Sensing of Environment, 112(5), 2627-2642.
Nilson, T., Suviste, S., Lükk, T., and Eenmäe, A. 2008. Seasonal reflectance course of some forest types in Estonia from a series of Landsat TM and SPOT images and via simulation. International Journal of Remote Sensing, 29(17-18), 5073-5091.
Kodar, A., Kutsar, R., Lang, M., Lükk, T., and Nilson, T. 2008. Leaf area indices of forest canopies from optical measurements. Baltic Forestry, 14(2), 185-194.
Rautiainen, M., Nilson, T., and Lükk, T. 2009. Seasonal reflectance trends of hemiboreal birch forests. Remote Sensing of Environment, 113(4), 805-815.
Hallik, L., Kull, O., Nilson, T., and Peñuelas, J. 2009. Spectral reflectance of multispecies herbaceous and moss canopies in the boreal forest understory and open field. Canadian Journal of Remote Sensing, 35(5), 474-485.
Kuusk, A., Nilson, T., Kuusk, J., and Lang, M. 2010. Reflectance spectra of RAMI forest stands in Estonia: Simulations and measurements. Remote Sensing of Environment, 114(12), 2962-2969.
Lang, M., Kuusk, A., Mõttus, M., Rautiainen, M., and Nilson, T. 2010. Canopy gap fraction estimation from digital hemispherical images using sky radiance models and a linear conversion method. Agricultural and Forest Meteorology, 150(1), 20-29.
Ryu, Y., Nilson, T., Kobayashi, H., Sonnentag, O., Law, B.E., and Baldocchi, D.D. 2010. On the correct estimation of effective leaf area index: Does it reveal information on clumping effects?. Agricultural and Forest Meteorology, 150(3), 463-472.
Mänd, P., Hallik, L., Penuelas, J., Nilson, T., Duce, P., Emmett, B.A., Beier, C., Estiarte, M., Garadnai, J., Kalapos, T., Schmidt, I.K., Kovacs-Lang, E., Prieto, P., Tietema, A., Westerveld, J.W., and Kull, O. 2010. Responses of the reflectance indices PRI and NDVI to experimental warming and drought in European shrublands along a north-south climatic gradient. Remote Sensing of Environment, 114(3), 626-636.
Ryu, Y., Sonnentag, O., Nilson, T., Vargas, R., Kobayashi, H., Wenk, R., and Baldocchi, D.D. 2010. How to quantify tree leaf area index in an open savanna ecosystem: A multi-instrument and multi-model approach. Agricultural and Forest Meteorology, 150(1), 63-76.
Pisek, J., Lang, M., Nilson, T., Korhonen, L., and Karu, H. 2011. Comparison of methods for measuring gap size distribution and canopy nonrandomness at Jarvselja RAMI (RAdiation transfer Model Intercomparison) test sites. Agricultural and Forest Meteorology, 151(3), 365-377.
Pisek, J., Chen, J.M., and Nilson, T. 2011. Estimation of vegetation clumping index using MODIS BRDF data. International Journal of Remote Sensing, 32(9), 2645-2657.
Nilson, T., Kuusk, A., Lang, M., Pisek, J., and Kodar, A. 2011. Simulation of statistical characteristics of gap distribution in forest stands. Agricultural and Forest Meteorology, 151(7), 895-905.
Eenmäe, A., Nilson, T., and Lang, M. 2011. A note on meteorological variables related trends in the MODIS NPP product for Estonia. Metsanduslikud Uurimused (Forestry Studies), 55, 60-63.
Nilson, T., Rennel, M., Luhamaa, A., Hordo, M., Olesk, A., and Lang, M. 2012. MERIS GPP/NPP product for Estonia: I. Algorithm and preliminary results of simulation. Metsanduslikud uurimused = Forestry studies, 56, 56−78.
Kallel, A. and Nilson, T. 2013. Revisiting the vegetation hot spot modeling: Case of Poisson/Binomial leaf distributions. Remote Sensing of Environment, 130, 188-204.
Nilson, T., Rennel, M., and Lang, M. 2014. MERIS GPP/NPP product for Estonia: II. Complex meteorological limiting factor and optimum leaf area index. Metsanduslikud uurimused = Forestry studies, 61, 5−26.
Mõttus, M., Takala, T., Stenberg, P., Knyazikhin, Y., Yang, B., and Nilson, T. 2015. Diffuse sky radiation influences the relationship between canopy PRI and shadow fraction. ISPRS Journal of Photogrammetry & Remote Sensing, 105, 54−60.
Lang, M., Nilson, T., Kuusk, A., Pisek, J., Korhonen, L., and Uri, V. 2017. Digital photography for tracking the phenology of an evergreen conifer stand. Agricultural and Forest Meteorology, 246, 15-21.
Lang, M., Kõlli, R., Nikopensius, M., Nilson, T., Neumann, M., and Moreno, A. 2017. Assessment of MODIS NPP algorithm-based estimates using soil fertility and forest inventory data in mixed hemiboreal forests. Metsanduslikud uurimused = Forestry studies, 66(1), 49−64.
Ross, J. and Nilson, T. 1963. Concerning the theory of the plant cover radiation regime. Studies on the physics of the atmosphere. Inst Phys Astron, Estonian Acad. Sci., Tartu, 42-64. (Russian)
Ross, J. and Nilson, T. 1965. Penetration of direct solar radiation in agricultural crops. Problems of radiation regime of plant canopies. Inst Phys Astron, Estonian Acad. Sci., Tartu, 25-65. (Russian)
Ross, J. and Nilson, T. 1966. Spatial orientation of leaves in crops and methods of its determination. Photosynthetic systems of high productivity. Nauka, Moscow, 109-125. (Russian)
Ross, J. and Nilson, T. 1966. Vertical distribution of biomass in agricultural crops. Photosynthetic systems of high productivity. Nauka, Moscow, 96-108. (Russian).
Ross, J. and Nilson, T. 1967. The radiation regime of plant communities with horizontal leaves. Phytoactinometrical studies of plant canopies. Inst. Phys. Astron., Estonian Acad. Sci., Tartu, 5-34. (Russian)
Tooming, H. and Nilson, T. 1967. Basis of energetic adaptation of vegetation on light. Phytoactinometrical studies of plant canopies. Inst. Phys. Astron., Estonian Acad. Sci., Tartu, 35-63. (Russian)
Ross, J. and Nilson, T. 1968. The calculation of photosynthetically active radiation in plant communities. Regime of photosynthetically active radiation in vegetation. Inst. Phys. and Astronomy, Acd. Sci. Est. SSR, 5-54. (Russian)
Nilson, T.A. 1968. Mathematial modelling of the radiation regime of plant cover. Abstract of Candidate (Ph D) theses. Tartu University, Tartu, 27 pp. (Russian)
Nilson, T. 1968. The calculation of spectral fluxes of shortwave radiation in plant communities. Regime of photosynthetically active radiation in vegetation. Inst. Phys. and Astronomy, Acd. Sci. Est. SSR, 55-80. (Russian)
Nilson, T. 1968. On the optimum geometrical arrangement of foliage in the plant cover. Regime of photosynthetically active radiation in vegetation, Inst. Phys. and Astronomy, Acd. Sci. Est. SSR, 112-146. (Russian)
Ross, J.K. and Nilson, T.A. 1968. A mathematical model of radiation regime of the plant cover. Actinometry and Atmospheric Optics. Valgus, Tallinn, 263-281. (Russian)
Niilisk, H., Nilson, T., and Ross, J. 1970. Radiation in plant canopies and its measurements. In: Setlik, I. (Ed.). Prediction and Measurement of Photosynthetic Productivity. Proc. IBP/PP Technical Meeting, Trebon, 14-21 September 1969, Center for Agricultural Publishing and Documentation, Wageningen, 165-177.
Nilson, T. and Ross, V. 1971. Determination of canopy density by means of photography. Biological productivity of spruce forests. Estonian Republican Committee for IBP, Tartu, 129-132.
Nilson, T. 1971. On dispersion of foliage elements in crop stands. Quantitative methods of vegetation study, II. Collected conference reports, Latvian Branch of USSR Botanical Society, Riga, 209-215.
Nilson, T. 1972. Radiation regime of plant canopy. Theoretical basis of photosynthetic productivity. Nauka, Moscow, 420-424. (Russian)
Ross, J. and Nilson, T. 1975. Radiation exchange in plant canopies. Heat And Mass Transfer In The Biosphere. P. 1. Transfer Processes In The Plant. Scripta Book Company, Washington, D.C., 327-336.
Nilson, T. 1977. On determination of radiation characteristics in plant canopies by hemispheric photographs. Phytoactinometric investigation of mountaneous forests. Academy of Sciences of the USSR, Vladivostok, 45-60. (Russian)
Kuusk, A., Mullamaa, Yu.-A., Niilisk, H., Nilson, T., and Sulev, M. 1978. The structure of the cloud cover in the trade-wind region on the basis of ship measurements, GARP Atlantic Tropical Experiment. Proceedings of the International scientific conference on the energetics of the tropical atmosphere (Tashkent, 14-21 September 1977), Geneva, WMO, 155-160.
Nilson, T. and Ross, V. 1979. Characterization of the transparency of a forest canopy by fish-eye photographs. Spruce Forest Ecosystem Strucure and Ecology , 2, Estonian IBP Report 12, Tartu, 117-130.
Nilson, T. 1980. Reduction of measured spectral albedos of vegetation to the same sun angle and soil moisture. Abstracts of the XI All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 125-128. (Russian)
Nilson, T. 1980. Calculation of the hot spot effect for forests. Abstracts of the XI All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 117-120. (Russian)
Ross, K., Aplei, V., Aho, A., Nilson, T., and Ross, J. 1980. Reflection indicatrixes of some vegetation types. Abstracts of the XI All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 113-116. (Russian)
Anton, J., Nilson, T., Aplei, V., Aho, A., Ross, K., and Ross, J. 1980. Correlations between radiative temperatures and reflectance factors of some natural objects. Abstracts of the XI All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 85-88. (Russian)
Ross, K., Nilson, T., and Ross, J. 1980. A model for calculating the radiation regime in plant canopies. Abstracts of the XI All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 12-15. (Russian)
Nilson, T., Aplei, V., Aho, A., Ross, K., and Ross, J. 1980. A statistical analysis of reflectance factors for some surface types. Abstracts of the XI All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 81-84. (Russian)
Nilson, T. 1984. Calculation of the radiation regime of a forest. Radiative climatology and applied actinometry. Materials XII Conf. Actinometry, Irkutsk, 179-181. (Russian)
Hari, P., Kaipiainen, L., Korpilahti, E., Mäkelä, A., Nilson, T., Oker-Blom, P., Ross, J., and Salminen, R. 1985. Structure, radiation and photosynthetic production in coniferous stands. Notes 54, Univ. Helsinki, Dept. Silvic., Res., 233 pp.
Nilson, T., Anton, J., Kuusk, A., Kydar, J., Ross, J., and Savihhin, A. 1986. Correlation links between radiance properties of some agricultural stands in different spectral regions and their interpretation. Remote Methods of Studying Agricultural Communities, Obninsk, Nov. 1983, Leningrad, Gidrometeoizdat, 66-76. (Russian)
Nilson, T. and Ross, J. 1986. A review of models of vegetation spectral reflectance. Remote Methods of Studying Agricultural Communities. Leningrad, Gidrometeoizdat, 3-6. (Russian)
Peterson, U., Kuusk, A., Nilson, T., Pajusalu, P., Ross, J., and Ross, K. 1987. Linear transforms of reflectance factor data in understanding the functioning of forest biogeozoenosis. Proc. Symp. Experiment and mathematical modelling in studying forest and wetland biogeozoenosis. Moscow, 251-261. (Russian)
Nilson, T. 1988. Spectral-temporal reflectance profiles for some cereals, Preprint A-10, Tartu, Estonian Acad.Sci. 53 pp.
Peterson, U. and Nilson, T. 1988. Linear transforms of spectral reflectance data in landscape analysis, Structure and landscape ecology of geosystems. Publications of Tartu State University, 808, 34-45.
Nilson, T. and Kuusk, A. 1988. An approximate model to calculate the reflectance factors of vegetation. Numerical methods of solving the radiative transfer equation. Acad. Sci. Estonia, Tartu, 1988, 146-149. (Russian)
Kuusk, A. and Nilson, T. 1989. The Reflectance of Shortwave Radiation from Multilayer Plant Canopies. Preprint A-1(1989), Tallinn, Acad. Sci. ESSR, 72 pp.
Nilson, T. 1991. A forest canopy reflectance model, 11th Annual Int. Geosci. and Remote Sens. Symp. IGARSS'91 Proceedings, 1559-1560, Helsinki University of Technology, Espoo, Finland, June 3-6, 1991, 1559-1560.
Nilson, T. 1991. Effect of needle loss on coniferous forest reflectance: a model prediction. 11th Annual Int. Geosci. and Remote Sens. Symp. IGARSS'91 Proceedings, Helsinki University of Technology, Espoo, Finland, June 3-6, 1991, 1543-1546.
Nilson, T. 1991. Radiative Transfer in Non homogeneous Plant Canopies. Abstract of Ph.D. Theses, Tartu University, 23 pp.
Nilson, T. and Peterson, U. 1993. Temporal reflectance trajectories of forest communities in Estonia,, Annual Report of the Estonian Academy of Sciences 1992, Tallinn, 16-17.
Nilson, T., Peterson, U., and Päivinen, R. 1993. Deviations from normal successional reflectance trajectories in damaged Scots pine stands. G. Preto and B. Koch (Eds.). Forest Resource Inventory and Monitoring and Remote Sensing Technology. Proc. IUFRO Centennial Symp, Berlin 27 Aug. 02 Sept. 1992, Japan Society of Forest Planning Press, Tokyo, 151-160.
Nilson, T., Peterson, U. 1993. On the use of remote sensing in monitoring of forest development. Ü. Mander, J. Fenger, T. Oja, M. Mikk, (Eds.). Energy, Environment, Natural Resources Management in the Baltic Sea Region. 4th Int. Conf. on System Analysis, Tallinn, Estonia, May 18-21, 1993. Nordiske Seminar Og Arbeidsrapporter 653, 247-255.
Nilson, T., Kuusk, A., Joffre, R., Lacaze, B., Methy, M., and Peterson, U. 1995. Determination of forest ecosystem parameters by inversion of a forest reflectance model. G. Guyot (Ed.). Proc. Int. Colloq. Photosynthesis and Remote Sensing, 28-30 Aug. 1995, Montpellier, NASA, ESA, JRC, INRA, CNES, IFREMER, EARSeL, ISPRS, Montpellier, 149-157.
Nilson, T. and Stenberg, P. 1996. Theoretical aspects on radiation submodels used in forest growth models. P. Hari, J. Ross and M. Mecke (Eds.). Production Process of Scots Pine; Geographical Variation and Models. Acta Forestalia Fennica, 254: 39-48.
Nilson, T., Kuusk, A., and Leroy, M. 1999. A comparison of forest BDRF simulated by the forest reflectance model and determined by airborne POLDER for some BOREAS sites. Proceedings of ALPS99 Symposium, January 18-22, CNES, Méribel, 2, WK3-O-07, 1-4.
Nilson, T., Lang, M., Kuusk, A., Anniste, J., and Lükk, T. 2000. Forest reflectance model as an interface between satellite images and forestry databases. Zawila-Niedzwiecki, T. and Brach, M. (Eds.). EUR 19530 - Remote Sensing and Forest Monitoring, Luxembourg: Office for Official Publications of the European Communities, 462-476.
Nilson, T. and Kuusk, A. 2002. Simulation of reflectance spectra in boreal coniferous forest. Sobrino, J.A., (Ed.). Recent Advances in Quantitative Remote Sensing. Proc. of the First Int. Symp., Universitat de València, Spain, 16-20 September 2002, Universitat de València, 31-38.
Lang, M., Kuusk, A., Nilson, T., Lükk, T., Pehk, M., and Alm, G. 2002. Reflectance spectra of ground vegetation in sub-boreal forests., Web page. Available on-line http://scorpion.to.ee/bgf/ger2600/ from Tartu Observatory, Estonia.
Kuusk, A., Lang, M., and Nilson, T. 2005. Forest test site at Järvselja, Estonia. Proc. of the Third Workshop CHRIS/Proba, 21-23 March 2005, Frascati, Italy, ESA Publication SP-593, 7 pp.
Kuusk, A., Nilson, T., Paas, M, 2005. Validation of the forest radiative transfer model. S. Liang, J. Liu, X. Li, R. Liu, M. Schaepman (Eds.). The 9th International Symposium on Physical Measurements and Signatures in Remote Sensing, Beijing, China, 17-19 October 2005. ISPRS, Part Two: 452−454.
Lang, M., Nilson, T., Kuusk, A., Kiviste, A., and Hordo, M. 2005. The performance of different leaf mass and crown diameter models in forming the input of a forest reflectance model: A test on forest growth sampleplots and Landsat ETM images. Håkan Olsson (Ed.). Proceedings of ForestSat 2005, 2: ForestSat 2005, 31 - June 3 2005, Borås, Sweden. Jönköping, 41−46.
Nilson, T., Suviste, S., Lükk, T., and Eenmäe, A. 2006. Seasonal reflectance course of some forest types in Estonia as determined from a series of LANDSAT TM and SPOT images and via simulation. José A. Sobrino (Ed.). Second Symposium on Recent Advances in Quantitative Remote Sensing, Auditori de Torrent, Spain, 25-29 September 2006. València: Universitat de València, 272−277.
Kuusk, A., Kuusk, J., Lang, M., Lükk, T., and Nilson, T. 2007. Hyperspectral reflectance of sub-boreal forests measured by CHRIS/PROBA and airborne spectrometer. Proc. ‘Envisat Symposium 2007’, Montreux, Switzerland 23–27 April 2007, ESA SP-636, July 2007, 6 pp.
Suviste, S., Nilson, T., Lükk, T. and Eenmäe, A. 2007. Seasonal reflectance course of some forest types in Estonia from multi-year LANDSAT TM and SPOT images and via simulation. Proceedings of Multi Temp 2007, 18-20 July, Leuven, Belgium, eds: G.J.M. De Lannoy, R. Hoeben, N.E.C. Verhoest, W.W. Verstraeten, S. Bruneel, P. Coppin, CD-ROM by Katholike Universitet Leuven, 5 pp.
Kuusk, A., Lang, M., Kuusk, J., Lükk, T., Nilson, T., Mõttus, M., Rautiainen, M., and Eenmäe, A. 2008. Database of Optical and Structural Data for the Validation of Radiative Transfer Models. Technical Report. Tartu Observatory, Tõravere, 53 pp.
Kuusk, A., Kuusk, J., Lang, M., and Nilson, T. 2010. Reflectance spectra of RAMI stands in Estonia. 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS 2010). CD-ROM: 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS 2010), Reykjavik, Iceland, June 2010. Reykjavik, Iceland: IEEE Geoscience and Remote Sensing Society, 1−4.
Nilson, T., Lang, M., Rautiainen, M., Pisek, J., Peterson, U., Kuusk, A., Kuusk, J., and Eenmäe, A. 2012. Time courses of reflectance for some forest types in Estonia. 1st EARSeL Workshop on Temporal Analysis of Satellite Images. Mykonos, Greece, May 23-25, 2012, 234-239.
Ross, J., Nilson, T., Kõdar, J., Safina, N., Makke, A., Ross, V., Roostalu, H. 1987. Odrakülvi struktuur, optiliste omaduste ja saagikuse vahelistest seostest. Teaduse saavutusi ja eesrindlikke kogemusi põllumajanduses, 5, 25-29.
Peterson, U., Nilson, T. 1988. Eesti männikute seisundi kaugseire tulemusi. Kaasaegse ökoloogia probleemid, TRÜ, ELUS ja ELKS Eesti Ökoloogiakogu, Tartu, 106-108.
Nilson, T. 1997. Metsanduslike andmebaaside, satelliidiülesvõtete, metsa heleduse ja kasvumudelite integreerimisest ühtsesse geoinfosüsteemi. Eesti Põllumajandusülikool, Teadustööde Kogumik, 189. Metsandus, Tartu, 133-139.
Nilson, T., Kuusk, A., Lang, M., Lükk, T., Anniste, J., Peterson, U. 1999. Satelliidipiltidel baseeruva metsakorralduse alused. Pidev metsakorraldus. EPMÜ Metsandusteaduskonna toimetised 32, 81-87.
Nilson, T. 2000. Kosmilise kaugseire rakendusvõimalusi Eesti metsanduses ja põllumajanduses. Eesti Teaduste Akadeemia seminari materjalid, 3.12.1999, Tallinn, 5-10.
Lang, M., Nilson, T., Lükk, T. 2001. Puistu kasvufunktsioonide kasutamisest kaugseires. Metsanduslikud uurimused = Forestry studies, 37, 80−88.
Lang, M., Sims, A., Nilson, T., Lükk, T. 2005. Lehe- ja okkamassi mudelite võrdlus kasvukäigupüsiproovitükkide andmetel metsa heleduse mudeli abil. Metsanduslikud uurimused = Forestry studies, 43, 38−48.
Nilson, T. 2007. Maksimaalse produktiivsuse printsiibi sünnist. Peeter Kõiva, Jüri Kadaja, Ain Kallis (toim.). Heino Tooming. Bibliograafia. Meenutused. Tallinn-Saku, 184-185.
Nilson, T., Lang, M. 2007. Kvantitatiivne kaugseire pakub tulevikuvõimalusi. Eesti Mets, 4, 22−24.
Peterson, U., Eerme, K., Lang, M., Nilson, T., Kuusk, A., Väljataga, K. 2008. Kaugseire koht ja tähendus loodusandmete kogumises ning andmetöötluses. Artiklikogumikus Väljataga, K., Kaukver, K., toimetajad, Kaugseire Eestis, Tartu Observatoorium, Keskkonnaministeeriumi Info- ja Tehnokeskus, Tallinn, lk. 8-16.
Nilson, T., Lang, M., Lükk, T., Eenmäe, A. 2008. Metsade produktiivsuse kaugseire. Artiklikogumikus Väljataga, K., Kaukver, K., toimetajad, Kaugseire Eestis, Tartu Observatoorium, Keskkonnaministeeriumi Info- ja Tehnokeskus, Tallinn, lk. 78-90.
Kodar, A., Lang, M., Arumäe, T., Pisek, J., Nilson, T. 2011. Metsa lehepinnaindeksi kaardistamine lennukilidari, satelliidipiltide ja maapealsete mõõtmiste abil Järvselja VALERI testalal. Metsanduslikud Uurimused (Forestry Studies), 55, 9-30.
Voolma, K., Nilson, T., Pilt, E. 2014. Okkalainelane Euroopas, Saaremaal ja satelliidipildil. Eesti Mets, 46 (2), 38−43.
Nilson, T., Voolma, K., Peterson, U., Lang, M. 2014. Okkalainelase kahjustuskolle Saaremaal Kihelkonnal Landsat-seeria piltidelt. Aan, Anne, Narusk, Kirke (Toim.). Kaugseire Eestis 2014, Keskkonnaagentuur, Tallinn, 138−148.
Lang, M., Kuusk, A., Nilson, T. 2016. Eesti metsade albeedo vajab mõõtmist ja analüüsimist. Eesti Mets, 50 (3), 42−44.
Nilson, T. 2000. Academician Juhan Ross 75. Proceedings of the Estonian Academy of Sciences. Physics, Mathematics, 49(3):190-192.
Nilson, T. 2001. Satelliidipildid ja metsandus. Tähetorni kalender 2002, Tõravere, 89-97.
Nilson, T., Kuusk, A. 2002. Juhan Ross: in memoriam: 14. august 1925 - 21. juuni 2002. Tartu Tähetorni kalender 2003. aastaks, 130−133.
Nilson, T. 2016. Taimkatte läbipaistvuse teoreetilisest käsitlusest. Tartu Tähetorni Kalender, 78−89.