Dronov, V.N., Makhrova, O.N. and Kupriyanova, M.V. 2019. Problems of natural movement of the population of Ryazan region in 2016-2036. Population. 22, 4 (Dec. 2019), 115-125. DOI:https://doi.org/10.19181/1561-7785-2019-00043.