1. Kolomyts, E.G., Boreal’nyi ekoton i geograficheskaya zonal’nost': atlas-monografiya (Boreal Ecotone and Geographical Zonality: Atlas-Monograph), Moscow: Nauka, 2005.
2. Gorchakovskii, P.L. and Shiyatov, S.G., Fitoindikatsiya uslovii sredy i prirodnykh protsessov v vysokogor’yakh (Phytoindication of Environmental Conditions and Natural Processes in High Mountains), Moscow: Nauka, 1985.
3. Mirkin, B.M. and Naumova, L.G., Nauka o rastitel’nosti (The Science of Vegetation), Ufa: Gilem, 1998.
4. Lu, X., Liang, E., Wang, Y., et al., Mountain treelines climb slowly despite rapid climate warming, Global Ecol. Biogeogr., 2020, vol. 30, no. 1, pp. 1–11. https://doi.org/10.1111/geb.13214
5. Zibzeev, E.G. and Sedel’nikov, V.P., The ecotone structure between forest end alpine altitudinal belts in the Southern Siberia mountains, Rastit. Mir Aziat. Ross., 2010, vol. 2, no. 6, pp. 46–49.