Quaternion algebras and symbol algebras over algebraic number field K, with the degree [K:Q] even. Gulf Journal of Mathematics, [S. l.], v. 4, n. 4, 2016. DOI: 10.56947/gjom.v4i4.258. Disponível em: https://gjom.org/index.php/gjom/article/view/258. Acesso em: 15 oct. 2026.