M. Grigoryan and R. Khachatryan, “BIOCHEMICAL PROCESSES PROMOTING THE CREATION AND EVOLUTION OF LANDSLIDES IN GEOLOGICAL ENVIRONMENT: (on the sample of Voghjaberd’s landslide)”, Proc. YSU C: Geol. Geogr. Sci., vol. 47, no. 1 (230), pp. 10–15, Apr. 2013.