MEZENTSEVA, Natalia, and Natalia KONDRAS. “SECOND DEMOGRAPHIC TRANSITION: ORIGINS AND CONCEPTS”. Ekonomichna ta Sotsialna Geografiya 73 (December 31, 2015): 51–56. Accessed July 15, 2026. https://www.bulletin-esgeograph.org.ua/esg/article/view/73-mezentseva-et-al-51-56.