[Aastaraamat Mets 2008. (Yearbook Forest 2008). 2009. Centre of Forest Protection and Silviculture / Metsakaitse- ja metsauuenduskeskus. Tartu, OÜ Paar. 213 pp. (In Estonian and in English).]Search in Google Scholar
[Aosaar, J., Uri, V. 2008. Halli lepa, hübriidlepa ja arukase biomassi produktsioon endistel põllumaadel. (Biomass production of grey alder, hybrid alder and silver birch stands on abandoned agricultural land). - Forestry Studies / Metsanduslikud Uurimused, 48, 53-66. (In Estonian with English summary).10.2478/v10132-011-0055-0]Search in Google Scholar
[Aosaar, J., Varik, M., Lõhmus, K., Uri, V. Stemwood density in young grey alder and hybrid alder stands growing on abandoned agricultural land. - European Journal of Forest Research. (Submitted 2010).]Search in Google Scholar
[Astover, A., Roostalu, H., Lauringson, E., Lemetti, I., Selge, A., Talgre, L., Vasiliev, N., Mõtte, M., Tõrra, T., Penu, P. 2006. Changes in agricultural land use and in plant nutrient balances of arable soils in Estonia. - Archives of Agronomy and Soil Science, 52, 223-231.]Search in Google Scholar
[Granhall, U. 1982. Use of Alnus in energy forest production. - Proceedings of the 2nd National Symposium on Biological Nitrogen Fixation, Finland, June 1982. Helsinki, 273-285]Search in Google Scholar
[Granhall, U., Verwijst, T. 1994. Grey alder (Alnus incana) a N2-fixing tree suitable for energy forestry. - Grassi, G., Scheer, H. (eds.). Biomass for Energy and Industry. Germany, Bochum, Hall, D. O., Ponte Press, 409-413.]Search in Google Scholar
[Hainla, V. 1971. Lepad. (Alders). - Eesti Loodus, 9, 526-531. (In Estonian).]Search in Google Scholar
[Hainla, V. 1979. Lepalehtede morfoloogiast. (Morphology of Alnus leaves). - Forestry Studies / Metsanduslikud Uurimused, 15, 149-153. (In Estonian with English summary).]Search in Google Scholar
[Hakkila, P. 1971. Basic density, bark percentage and dry matter content of grey alder (Alnus incana). - Communicationes Instituti Forestalis Fenniae, 71(5), 32.]Search in Google Scholar
[Hakkila, P. 1989. Utilization of residual forest biomass. Berlin, Springer-Verlag. 568 pp.10.1007/978-3-642-74072-5]Search in Google Scholar
[Henno, O. 1980. Arukaasikute kasvukäik põhilistes kasvukohatüüpides. (The yield table of silver birch stands in main site types). - Transactions of Estonian Agricultural Academy / EPA teaduslike tööde kogumik 128. Tartu, 80-89. (In Estonian).]Search in Google Scholar
[Johansson, T. 2007. Biomass production and allometric above- and below-ground relations for young birch stands planted at four spacings on abandoned farmland. - Forestry, 80, 41-52.10.1093/forestry/cpl049]Search in Google Scholar
[Johansson, T. 2005. Stem volume equations and basic density for grey alder and common alder in Sweden. - Forestry, 78(3), 249-262.]Search in Google Scholar
[Kasesalu, A. 1965. Kasepuidu füüsikalis-mehaanilistest omadustustest erinevates kasvukohatüüpides. (Physical-mechanical properties of birch timber in different site types). - Forestry Studies / Metsanduslikud Uurimused, 4, 149-157. (In Estonian).]Search in Google Scholar
[Koppel, A., Perttu, K., Ross, J. 1996. Estonian energy forest plantations - general information. - Perttu, K., Koppel, A. (eds.). Short rotation willow coppice for renewable energy and improved environment. Uppsala, 81-86.]Search in Google Scholar
[Krigul, T. 1971 Metsataksaatori teatmik. (Handbook of forest survey). Tartu. 150 pp. (In Estonian).]Search in Google Scholar
[Kund, M., Vares, A., Sims, A., Tullus, H., Uri, V. 2010. Early growth and development of silver birch (Betula pendula Roth.) plantations on abandoned agricultural land. -European Journal of Forest Research, 129, 679-688.]Search in Google Scholar
[Meiner, A. (ed.) 1999. Eesti maakate. - CORINE Land Cover projekti täitmine Eestis. (Land Cover of Estonia. Implementation of CORINE Land Cover project in Estonia). Tallinn.]Search in Google Scholar
[Mūrnieks, P. 1950. Baltalkšņa (Alnus incana (L.) Moench.) augšanas gaita Latvijas PSR (The growth progression of grey alder in Latvian SSR). - Meža Pētīšanas Institūta Raksti, vol. II. Riga, ZA izdevniecība, 7-11. (In Latvian).]Search in Google Scholar
[Paves, H. 2004. Lehis - metsa- ja pargipuu. (Larch as a forest and park tree). Tartu. 94 pp. (In Estonian).]Search in Google Scholar
[Raukas, A., 1930. Pärnumaa talumetsad. Referat: Die Gesindewälder des Pernauschen Kreises. (Family forests in Pärnu county - Report). - Tartu Ülikooli Metsaosakonna Toimetised, 19(1), 147 pp. (In Estonian with German summary).]Search in Google Scholar
[Repola, J. 2006. Models for vertical wood density of Scots Pine, Norway Spruce and Birch stems and their application to determine average wood density. - Silva Fennica, 40(4), 673-685.10.14214/sf.322]Search in Google Scholar
[Rytter, L., Slapokas, T., Granhall, U. 1989. Woody biomass and litter production of fertilized grey alder plantations on a low-humified peat bog. - Forestry Ecology Management, 28, 161-176.]Search in Google Scholar
[Saarman, E., Veibri, U. 2006. Puiduteadus. (Wood Science). Tartu. 56 pp. (In Estonian).]Search in Google Scholar
[Saarsalmi, A. 1995. Nutrition of deciduous tree species grown in short rotation stands. - Academic dissertation, University of Joensuu, Finland.]Search in Google Scholar
[Telenius, B. F. 1999. Stand growth of deciduous pioneer tree species on fertile agricultural land in southern Sweden. - Biomass and Bioenergy, 16, 13-23.]Search in Google Scholar
[Tullus, H. 1998. Eesti halli lepa puistud energiaressursina. - ETF grandiprojekti nr.1603 lõpparuanne. (Estonian grey alder stands as energy resources - ESF grant no. 1603 final report). Tartu. 61 pp. (In Estonian).]Search in Google Scholar
[Uri, V. 2000. Halli ja hübriidlepa kultuurid endisel põllumaal ja nende biomassi produktsioon. (Grey alder and hybrid alder plantations on former agricultural land and their biomass production). - Forestry Studies / Metsanduslikud Uurimused, 32, 78-90. (In Estonian with English summary).]Search in Google Scholar
[Uri, V., Aosaar, J. 2008. Hübriidlepast (Alnus Hybrida A. Br.). (About hybrid alder (Alnus Hybrida A. Br.)). - Dendroloogilised Uurimused Eestis, IV, 7-14. (In Estonian and in English).]Search in Google Scholar
[Uri, V., Lõhmus, K., Kiviste, A., Aosaar, J. 2009. The dynamics of biomass production in relation to foliar and root traits in a grey alder (Alnus incana (L.) Moench) plantation on abandoned agricultural land. - Forestry, 82, 61-74.10.1093/forestry/cpn040]Search in Google Scholar
[Uri, V., Lõhmus, K., Ostonen, I., Tullus, H., Lastik, R., Vildo, M. 2007a. Biomass production, foliar and root characteristics and nutrient accumulation in young silver birch (Betula pendula Roth.) stand growing on abandoned agricultural land. - European Journal of Forest Research, 126, 495-506.]Search in Google Scholar
[Uri, V., Tullus, H. 1999. Grey alder and hybrid alder as short-rotation forestry species. In: Overend, R. P., Chornet, E. (Eds.). - Proceedings of the 4th Biomass Conference of Americas, Vol. 1. Oakland, CA, 167-173.]Search in Google Scholar
[Uri, V., Tullus, H., Lõhmus, K. 2002. Biomass production and nutrient accumulation in short-rotation grey alder (Alnus incana (L.) Moench) plantation on abandoned agricultural land. - Forest Ecology and Management, 161, 169-79.]Search in Google Scholar
[Uri, V., Tullus, H., Lõhmus, K. 2003. Nutrient allocation, accumulation and above-ground biomass in grey alder and hybrid alder plantations. - Silva Fennica, 37(3), 301-311.]Search in Google Scholar
[Uri, V., Vares, A., Tullus, H., Kanal, A., 2007b. Above-ground biomass production and nutrient accumulation in young stands of silver birch on abandoned agricultural land. - Biomass and Bioenergy, 31(4), 195-204.10.1016/j.biombioe.2006.08.003]Search in Google Scholar
[Vares, A. 2005. The growth and development of young deciduous stands in different site conditions. (Noorte lehtpuistute kasv ja areng erinevates kasvukohatingimustes). - PhD Thesis. Tartu. 157 pp.]Search in Google Scholar
[Vares, A., Uri, V., Tullus, H., Kanal, A. 2003. Height growth of four fast-growing deciduous tree species on former agricultural lands in Estonia. - Baltic Forestry, 9(1), 2-8.]Search in Google Scholar
[Кундзинын, А.В. 1969. Исследования рода ольхи (Alnus Gaertn.) в Латвийской ССР. Доклад по опу-бликованным работам, представленным к защите на соискание ученой степени доктора сельскохозяйственных наук. Елгава. (Studies of the alder genus (AlnusGaertn.) in the Latvian SSR. Jelgava. 50 pp. (In Russian).]Search in Google Scholar
[Пират, Д.М. 1962. Ход роста и строение древесины гибридной ольхи (Alnus hybrida A. Br.) в Латвий-ской ССР. Автореферат диссертаций на соискание ученой степени кандидата сельскохозяй-ственных наук. Елгава. (The growth and structure of timber on hybrid alder in Latvia. Academic dissertation, Latvian Agricultural Academy, Jelgava, Latvia. (In Russian).]Search in Google Scholar