STEPANOV, Evgeny. Forming the Cultural Layer of Cooperation. Gosudarstvennaya Sluzhba, [S. l.], v. 12, n. 4, p. 84–88, 2010. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/21122. Acesso em: 8 nov. 2026.