Silantieva, M. M., N. V. Elesova, P. A. Kosachev, N. V. Ovczarova, and S. G. Kazanovskiy. “Unique Spruce Forests of the Altaiskii Krai”. Acta Biologica Sibirica 3, no. 2 (May 20, 2017): 6-12. Accessed January 21, 2020. http://journal.asu.ru/biol/article/view/2184.