The Almost Split Sequences for Trivial Extensions of Hereditary Algebras. Communications in Mathematical Research, [S. l.], v. 30, n. 4, p. 369–378, 2021. DOI: 10.13447/j.1674-5647.2014.04.10. Disponível em: https://www.global-sci.com/index.php/cmr/article/view/8829. Acesso em: 6 dec. 2025.