[Avis, P.G. 1997. The forest typology of Latvia: an overview and comparison. – Proceedings of the Latvian Academy of Sciences, Section B, 51, 195–199.]Search in Google Scholar
[Bušs, K. 1997. Forest ecosystems classification in Latvia. – Proceedings of the Latvian Academy of Science, Section B, 51, 204–218.]Search in Google Scholar
[Bušs, K.K. 1976. Principles of Forest Typology in Latvian SSR. Review. (Основы лесной типологи Латвийской ССР. Обзор.). Рига, ЛатИНТИ. 25 pp. (In Russian).]Search in Google Scholar
[Chytrý M., Tichý L., Dřevojan P., Sádlo J., Zelený D. 2018. Ellenberg-type indicator values for the Czech flora. – Preslia, 90, 83–103.10.23855/preslia.2018.083]Search in Google Scholar
[Dierβen, K. 1996. Vegetation Nordeuropas. Stuttgart, Verlag Eugen Ulmer. 838 pp.]Search in Google Scholar
[Dufrêne, M., Legrendre, P. 1997. Species assemblages and indicator species: the need for a flexible asymmetrical approach. – Ecological Monographs, 67, 345–366.10.1890/0012-9615(1997)067[0345:SAAIST]2.0.CO;2]Search in Google Scholar
[Ellenberg, H. 1979. Bioindicator values of the vascular plants of Central Europe. (Zeigerwerte der Gefäßpflanzen Mitteleuropas). 2. Aufl. – Scripta Geobotanica, 9, 1–122.]Search in Google Scholar
[Fedorchuk, V.N., Neshatayev, V.Y., Kuznetsova, M.L. 2005. Forest Ecosystems of the North-Western Regions of Russia: Typology, Dynamics, Forest Management Features. (Лесные экосистемы северо-западных районов России. Типология, динамика, хозяйственные особенности). St. Petersburg, Forestry Scientific Research Institute. 382 pp. (In Russian).]Search in Google Scholar
[Hainla, V. 1957. About results of drainage in pine forests of transitional mires. (Siirdesoomännikute kuivendamise tulemustest Eestis). – Forestry Studies / Metsanduslikud Uurimused, 1, 5–78. (In Estonian).]Search in Google Scholar
[Heikurainen, L. 1964. Mires Site Types Suitable for Peatland Forestry. (Suotyyppien ojituskelpoisuus). Helsinki, Kirjayhtymä. 47 pp. (In Finnish).]Search in Google Scholar
[Heikurainen, L. 1983. Mires. (Болота). Москва, Лесная промышленность. 41 pp. (In Russian).]Search in Google Scholar
[Heikurainen, L., Pakarinen, P. 1982. Peatland classification. Mire vegetation and site types. – Laine, J. (ed.). Peatlands and Their Utilization in Finland. Helsinki, Finnish Peatland Society & Finnish National Committee of the International Peat Society, 14–28.]Search in Google Scholar
[Ingerpuu, N., Vellak, K. 1998. Keybook of the Estonian Bryophytes. (Eesti sammalde määraja). Tartu, Eesti Loodusfoto. 239 pp. (In Estonian).]Search in Google Scholar
[IUSS Working Group WRB. 2015. World Reference Base for Soil Resources 2014, update 2015. International soil classification system for naming soils and creating legends for soil maps. – World Soil Resources Reports, 106, 1–192. FAO, Rome.]Search in Google Scholar
[Karu, A. 1957. Mire forest types in Estonian S.S.R. (Eesti NSV soometsatüübid). – Kabala metskonnas 2.–3. XI 1956. a. toimunud metsakuivendusalase teadusliku nõupidamise materjalid. Tartu, Eesti NSV Teaduste Akadeemia Zooloogia ja Botaanika Instituudi metsasektor, 35–41.]Search in Google Scholar
[Karu, A., Muiste, L. 1958. Estonian Forest Site Types. (Eesti metsakasvukohatüübid). Tallinn, Eesti Riiklik Kirjastus. 43 pp. (In Estonian).]Search in Google Scholar
[Katus, A., Tappo. E. 1965. Estonian Forest Site Types. (Eesti metsa-kasvukohatüübid). Tallinn, Eesti NSV Ministrite Nõukogu Metsamajanduse ja Looduskaitse Peavalitsus. 45 pp. (In Estonian).]Search in Google Scholar
[Kielland-Lund, J. 1994. Syntaxonomy of Norwegian forest vegetation 1993. – Phytocoenologia, 24, 299–310.10.1127/phyto/24/1994/299]Search in Google Scholar
[Krall, H., Kukk, T., Kull, T., Kuusk, V., Leht, M., Pihu, S., Reier, Ü., Zingel, H., Tuulik, T. 2010. Keybook of the Estonian Plants. (Eesti taimede määraja). Tartu, Eesti Maaülikool, Eesti Loodusfoto. 447 pp. (In Estonian).]Search in Google Scholar
[Laine, J. 1989. Classification of Peatlands Drained for Forestry. (Metsaojitettujen soiden luokittelu). – Suo, 40, 37–51. (In Finnish).]Search in Google Scholar
[Lõhmus, E. 1974. Forests From Bogs to Heaths and Alvars. (Metsad rabadest nõmmede ja loopealseteni). – Valk. U., Eilart, J. (eds.). Eesti metsad. Tallinn, Valgus, 60–98. (In Estonian).]Search in Google Scholar
[Lõhmus, E. 1981. Anthropogenous forest site types on drained peatlands. – Laasimer, L. (ed.). Anthropogenous Changes in the Plant Cover of Estonia. Tartu, Academy of Sciences of the Estonian S.S.R., Institute of Zoology and Botany, 77–90.]Search in Google Scholar
[Lõhmus, E. 1982. About origin, classification and diagnostics of fully drained forests. (Kõdusoometsade geneesist, klassifitseerimisest ja diagnostikast). – Tamm, Ü. (ed.). Forestry. Exploitation, Protection and Recreative Usage of Forests. (Metsamajandus. Metsade majandamine, kaitse ja rekreatiivne kasutamine). Tallinn, Valgus, 2–25. (In Estonian).]Search in Google Scholar
[Lõhmus, E. 2004. Estonian Forest Site Types. (Eesti metsakasvukohatüübid). Tartu, Eesti Loodusfoto. 80 pp. (In Estonian).]Search in Google Scholar
[Masing, V. 1969. Structural analysis of plant cover and classification problems. – Laasimer, L. (ed.). Plant Taxonomy, Geography and Ecology in the Estonian S.S.R. Tallinn, Valgus, 49–59.]Search in Google Scholar
[McCune, B., Grace, J.B. 2002. Analysis of Ecological Communities. Oregon (USA), MjM Software Design. 300 pp.]Search in Google Scholar
[McCune, B., Mefford, M.J. 2011. PC-ORD. Multivariate Analysis of Ecological Data. Version 6.0. [WWW Document]. – URL http://pcord.home.comcast.net/~pcord/pcord/PBooklet.pdf. [Accessed 15 April 2019].]Search in Google Scholar
[Moen, A. 1999. National Atlas of Norway: Vegetation. Hønefoss, Norwegian Mapping Authority. 200 pp.]Search in Google Scholar
[Paal, J. 1997. Classification of Estonian Vegetation Site Types. (Eesti taimkatte kasvukohatüüpide klassifikatsioon). Tallinn, Keskkonnaministeerium & ÜRO keskkonnaprogramm. 297 pp. (In Estonian).]Search in Google Scholar
[Paal, J. 2009. The forests on the North-Estonian Klint; the north-easternmost representatives of the EU Habitat Directive Tilio-Acerion forests of slopes, screes and ravines. – Annales Botanici Fennici, 46, 525–540.10.5735/085.046.0605]Search in Google Scholar
[Paal, J., Prieditis, N., Rannik, R., Jeletsky, E.-M. 2008. Classification structure of floodplain forests in Estonia: a comparison of two classification approaches. – Annales Botanici Fennici, 45, 255–268.10.5735/085.045.0402]Search in Google Scholar
[Paal, J., Rannik, R., Jeletsky, E.-M., Prieditis, N. 2007. Floodplain forests in Estonia: Typological diversity and growth conditions. – Folia Geobotanica, 42, 383–400.10.1007/BF02861701]Search in Google Scholar
[Paavilainen, E., Päivänen, J. 1995. Peatland Forestry. Ecology and Principles. Berlin – Heidelberg, Springer. 248 pp.10.1007/978-3-662-03125-4]Search in Google Scholar
[Pikk, J. 1997. Impact of forest drainage on formation of forest site types. (Metsakuivenduse mõju metsakasvukohatüüpide kujunemisele). – Eesti Mets, 54, 14–15. (In Estonian).]Search in Google Scholar
[Pikk, J., Seemen, H. 2000. Loss of peat on drained peatlands in Estonia. – Baltic Forestry, 1, 25-29.]Search in Google Scholar
[Saks, K.A. 1966. Forests of Latvian SSR. Forests of SSSR, vol. 2. Subzone of Southern Taiga and Mixed Forests. (Леса Латвийской ССР. Леса СССР, т. 2. Подзона южной тайги и смешаных лесов). Москва, Наука, 42–92. (In Russian).]Search in Google Scholar
[Schaffers, A.P., Sýkora, K.V. 2000. Reliability of Ellenberg indicator values for moisture, nitrogen and soil reaction: A comparison with field measurements. – Journal of Vegetation Science, 11, 225–244.10.2307/3236802]Search in Google Scholar
[StatSoft. Inc. 2005. STATISTICA (data analysis software system), version 7.1. [WWW Document]. – URL http://www.statsoft.com/Textbook. [Accessed 09 April 2019].]Search in Google Scholar
[Vasilevic, V.I., Bibikova, T.V. 2002. Broad-leaved forests of North-West of European Russia. Types of linden, maple, ash and elm forests. (Широколиственные леса Северо-Запада Европейской России. Типы липовых, кленовых, ясеневых и ильмовых лесов). – Ботанический журнал, 87, 48–61. (In Russian).]Search in Google Scholar