Borzooei, Rajab Ali, Gholam Reza Rezaei, and Young Bae Jun. 2023. “Fuzzy Weak Filters of Sheffer Stroke Hilbert Algebras”. Annales Mathematicae Silesianae 37 (2):185-203. https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/15790.