SŁOWIK, R. The Drazin inverses of infinite triangular matrices and their linear preservers. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 4, p. 534–548, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1574. Acesso em: 14 apr. 2025.