ORLOV, I. Generalized Hamel basis and basis extension in convex cones and uniquely divisible semigroups. Eurasian Mathematical Journal, [S. l.], v. 9, n. 1, 2024. Disponível em: https://emj.enu.kz/index.php/main/article/view/107. Acesso em: 5 oct. 2024.