1. Adzhiev, R.K., Onipchenko, V.G., and Tekeev, D.K., Viability of buried seeds from alpine plant communities (Northwest Caucasus): results of a five-year experiment, Biol. Bull. Rev., 2013, vol. 3, no. 3, pp. 241–245.
2. Alpine Ecosystems in the Northwest Caucasus, Onipchenko, V.G., Ed., Dordrecht: Kluwer, 2004.
3. Ando, T., Li, C.-K., and Mathias, R., Geometric means, Linear Algebra Appl., 2004, vol. 385, pp. 305–334.
4. Arctic and Alpine Biodiversity: Patterns, Causes and Ecosystem Consequences, Chapin III, F.S. and Körner, C., Eds., Berlin: Springer-Verlag, 1995.
5. Artyushenko, Z.T., Atlas po opisatel’noi morphologii vysshikh rastenii: semya (Atlas on Descriptive Morphology of Higher Plants: A Seed), Leningrad: Nauka, 1990.