Brylev, V. A. and Burul, T. N. (2020) “Historical and Geographic Aspects of Forming a System of Specially Protected Areas (SPA) in the Volgograd Region”, Proceedings of Voronezh State University. Series: Geography. Geoecology, 0(2), pp. 59-65. doi: 10.17308/geo.2020.2/2887.