Tabatabaie, Seyyed Mohammad, Ali Reza Bagheri Salec, and Haneen Ridha Jameel Allami. “Porosity in the Context of Hypergroups”. Eurasian Mathematical Journal 15, no. 1 (April 8, 2024). Accessed July 6, 2024. https://emj.enu.kz/index.php/main/article/view/14.