An alternative proof of Miyashita’s Theorem in a skew polynomial ring II. Gulf Journal of Mathematics, [S. l.], v. 5, n. 4, 2018. DOI: 10.56947/gjom.v5i4.116. Disponível em: https://gjom.org/index.php/gjom/article/view/116. Acesso em: 28 aug. 2026.