1. Alekseev, V.A. and Berdsi, V.A., Uglerod v ekosistemakh lesov i bolot Rossii (Carbon in Forest and Wetland Ecosystems of Russia), Krasnoyarsk: Institut lesa i drevesiny, 1994.
2. Bobkova, K.S., The structure of the root systems of trees in different types of pine forests of the Zelenoborsk Station, Tr. Komi Fil. AN SSSR, 1971, no. 24, pp. 52–69.
3. Bobkova, K.S., Ecological bases of the productivity of coniferous forests of the European North-East, Doctoral (Biol.) Dissertation, Syktyvkar: Institut lesa i drevesiny, 1990.
4. Chen, W., Zhang, Q., Cihlar, J., Bauhus, J., and Price, D.T., Estimating fine-root biomass and production of boreal and cool temperate forests using aboveground measurements: a new approach, Plant Soil, 2004, vol. 265, pp. 31–46.
5. Chertov, O.G., Komarov, A.S., Bykhovets, S.S., and Bhatti, J.S., Differences in the ecological strategies of coniferous trees in European and Canadian boreal forests: simulation analysis, Biosfera, 2015, vol. 7, no. 3, pp. 328–337.