Commutative Law for the Multiplication of Matrices as Viewed in Terms of Hankel’s Principle. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 7, n. 4, p. 405–411, 2014. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/2017. Acesso em: 22 dec. 2024.