BARTSITS, Igor. To Have or Not to Have. Gosudarstvennaya Sluzhba, [S. l.], v. 14, n. 5, p. 12–15, 2012. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/21603. Acesso em: 9 nov. 2026.