HARMS, Evgenia, 		SUKHOVA, Maria, 		KOCHEEVA, Nina, 		MINAEV, Alexander, AND 		KARANIN, Andrey.
" On the Concept of Sustainable Recreational Use of Natural Resources of Cross- Border Areas of Altai" <em>Journal of Environmental Management and Tourism</em> [Online], Volume 7 Number 2 (14 November 2016)