EFREMOV, Evgeny. Factors of implementation of spatial and geographical programs in the USSR and Russia. Gosudarstvennaya Sluzhba, [S. l.], v. 16, n. 3, p. 102–105, 2014. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/21936. Acesso em: 3 nov. 2026.