1. Aibazova, F.U. and Tiunov, N.A., Changes in the Plant Biomass of an Alpine Meadow with Festuka varia with Increasing Availability of Soil Resources, in Tr. Teberdinsk. gos. biosfernogo zapovednika (Transactions of the Teberda State Biosphere Reserve), Pavlov, V.N., et al., Eds., 2004, vol. 21: Kompleksnye issledovaniya al’piiskikh ekosistem Teberdinskogo zapovednika (Complex Investigations of Alpine Ecosystems of the Teberda Reserve), pp. 46–53.
2. Akhmetzhanova, A.A. and Onipchenko, V.G., Response of Plants of an Alpine Meadow with Geranium and Hedysarum to Increase in the Availability of Soil Resources: Assessment of Changes in the Biomass, Byul. MOIP. Otd. Biol., 2005, vol. 110, no. 1, pp. 52–59.
3. Alpine Ecosystems in the Northwest Caucasus, Onipchenko, V.G., Ed., Dordrecht: Kluwer Acad. Publ., 2004.
4. Calfapietra, C., Tulva, I., Eensalu, E., Perez, M., De Angelis, P., Scarascia-Mugnozza, G., and Kull, O., Canopy Profiles of Photosynthetic Parameters under Elevated CO2 and N Fertilization in a Poplar Plantation, Environ. Pollution, 2005, vol. 137, no. 3, pp. 525–535.
5. Dahlgren, J.P., Eriksson, O., Bolmgren, K., Strindell, M., and Ehrlen, J., Specific Leaf Area as a Superior Predictor of Changes in Field Layer Abundance during Forest Succession, J. Vegetation Sci., 2006, vol. 17, no. 5, pp. 577–582.