1. Able, K.P. and Noon, B.R., Avian community structure along elevational gradients in the Northeastern United States, Oecologia, 1976, vol. 26, pp. 275–294.
2. Akatov, V.V., Akatova, T.V., and Chefranov, S.G., Number and occurrence of plant species in natural and synanthropic phytocenosises of subalpine belt of Western Caucasus, Zhivye Biokosnye Sist., 2012, no. 2. http://www.jbks.ru/archive/issue-1/article-6
3. Akatov, V., Chefranov, S., and Akatova, T., The relationship between local species richness and species pool: a case study from the high mountains of the Greater Caucasus, Plant Ecol., 2005a, vol. 181, no. 1, pp. 9–22.
4. Akatov, V.V., Chefranov, S.G., and Akatova, T.V., The role of historical processes in determining tree species richness in the forests of Western Caucasus, Zh. Obshch. Biol., 2005b, vol. 66, no. 6, pp. 459–470.
5. Akatov, V.V. and Perevozov, A.G., The correlation between dominance level and local species richness: an analysis of the underlying causes by the example of the West Caucasian arboreal and avian communities, Biol. Bull. Rev., 2011, vol. 1, no. 5, pp. 432–445.