MALKOV, Peter, Maria G. SUKHOVA, Olga P. VOZNIYCHUK, Anastasia N. MALKOVA, Nadezhda E. KHUDYAKOVA, & Sergey V. DOLGOVYKH. " Impact of Tourism and Recreational Activities on the Biological Diversity in the Altai Republic." Journal of Environmental Management and Tourism [Online], 10.4 (2019): 870-877. Web. 24 Nov. 2024