Chibilyova, V. P., I. Y. Filimonova, and N. Y. Sviatokha. “Innovative Development of Tourism in the Steppe Regions of Russia”. Proceedings of Voronezh State University. Series: Geography. Geoecology, no. 4, Dec. 2021, pp. 3-12, doi:10.17308/geo.2021.4/3744.