BORZOOEI, Rajab Ali; REZAEI, Gholam Reza; JUN, Young Bae. Fuzzy weak filters of Sheffer stroke Hilbert algebras. Annales Mathematicae Silesianae, [S. l.], v. 37, n. 2, p. 185–203, 2023. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/15790. Acesso em: 21 dec. 2025.