Попкова, Л.И. and Овсянников, А.С. 2019. Territorial differences in the level of food security in the regions of the Central Black Soil Region. Proceedings of Voronezh State University. Series: Geography. Geoecology. 2 (Apr. 2019), 5-16. DOI:https://doi.org/10.17308/geo.2019.2/2296.