TEAM, S. Notes on the Spectrum of Lower Triangular Double-Band Matrices: Ali M. Akhmedov, Saad R. El-Shabrawy. Thai Journal of Mathematics, [S. l.], v. 10, n. 2, p. 415–421, 2012. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/328. Acesso em: 4 may. 2024.