REGIONAL ASPECTS AND TENDENCIES OF POPULATION AGEING OF THE CENTRAL FEDERAL DISTRICT OF THE RUSSIAN FEDERATION. Science Outpost, [S. l.], v. 8, n. 1, p. 74–78, 2014. Disponível em: https://forpost-nauki.owebs.ru/article/view/4598. Acesso em: 28 sep. 2026.