Grinin, Leonid E., Anton L. Grinin, and Andrey V. Korotayev. “Aging of the Global Population As an Integral Problem of the Future”. Sotsiologicheskiy Zhurnal = Sociological Journal 29, no. 2 (June 29, 2023): 110-131. Accessed November 11, 2026. https://www.journal-socjournal.ru/index.php/socjour/article/view/9431.