Valery Cherkashin. Why does an official need an Overcoat?. Gosudarstvennaya Sluzhba, [S. l.], v. 11, n. 4, p. 99–101, 2009. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/20896. Acesso em: 8 nov. 2026.