ZERZAIHI, T. CALCUL FONCTIONNEL POUR DEUX OPERATEURS NON BORNES. Sciences & Technology. A, exactes sciences, [S. l.], n. 16, p. 13–16, 2001. Disponível em: https://revue.umc.edu.dz/a/article/view/1758. Acesso em: 18 may. 2024.