Algebraic topology: On results of quotient for topological modules. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 3, p. 297–301, 2021. DOI: 10.21533/pen.v9.i3.847. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/847. Acesso em: 6 jul. 2026.