KHANEHGIR, M.; HASANVAND, F. On Bounded Linear Operations in b-Hilbert Spaces and their Numerical Ranges. Asian Journal of Fuzzy and Applied Mathematics, [S. l.], v. 3, n. 4, 2015. Disponível em: https://ajouronline.com/index.php/AJFAM/article/view/2875. Acesso em: 26 apr. 2024.