The geography of publication activity of the leading journals in the scientific specialty group 25.00.00 – Earth sciences (using the examples of the journals «Geography and Natural Resources», «Moscow University Bulletin. Series 5. Geography» and «Proceed. (2019). Proceedings of Voronezh State University. Series: Geography. Geoecology, 3, 108-115. https://doi.org/10.17308/geo.2019.3/2335