WANJALA VICTOR; BEATRICE ADHIAMBO OBIERO. On Almost Class (Q) and Class $(M,n)$ Operators. International Journal of Mathematics And its Applications, [S. l.], v. 9, n. 2, p. 115–118, 2021. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/74. Acesso em: 4 may. 2024.