“Altitudinal Mesozonality – Version of Orographic Zoning of the Landscapes of the Centre of the Russian Plain”. Proceedings of Voronezh State University. Series: Geography. Geoecology, no. 3 (July 26, 2020): 3–12. Accessed April 5, 2026. https://journals.vsu.ru/geo/article/view/3017.