Constructing the Cocyclic Structures for Crossed Coproduct Coalgebras. Communications in Mathematical Research, [S. l.], v. 31, n. 1, p. 81–88, 2021. DOI: 10.13447/j.1674-5647.2015.01.09. Disponível em: https://global-sci.com/index.php/cmr/article/view/8839. Acesso em: 5 dec. 2025.