MAO, H. The Relationships Between Posets and Independent Sets of a Matroid of Arbitrary Cardinality. Eurasian Mathematical Journal, [S. l.], v. 6, n. 1, p. 56–64, 2015. Disponível em: https://emj.enu.kz/index.php/main/article/view/597. Acesso em: 9 oct. 2025.