KHAN, M. A. Block Toeplitz Matrices: Multiplicative Properties. MATEMATIKA: Malaysian Journal of Industrial and Applied Mathematics, [S. l.], v. 39, n. 1, p. 101–112, 2023. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/1437. Acesso em: 30 may. 2023.