Anna Kholodenko (2019). ASSESSMENT OF ENVIRONMENTAL EFFICIENCY WILDLIFE PRESERVE FUNCTIONING IN THE NATURAL PROTECTED AREAS SYSTEM OF THE VOLGOGRAD REGION. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Ecology, Economics, Education and Legislation, 147-154. https://doi.org/10.5593/sgem2019/5.2/s20.019