AMSil R. Report of Meeting. The Twenty-first Katowice–Debrecen Winter Seminar on Functional Equations and Inequalities Brenna (Poland), February 2-5, 2022. Ann. Math. Sil. [Internet]. 2022 Mar. 22 [cited 2025 Jul. 3];36(1):92-105. Available from: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13463