AMSil, Redakcja. “Report of Meeting. The Nineteenth Katowice–Debrecen Winter Seminar on Functional Equations and Inequalities Zakopane (Poland), January 30–February 2, 2019”. Annales Mathematicae Silesianae 33 (June 22, 2019): 306-325. Accessed November 25, 2024. https://journals.us.edu.pl/index.php/AMSIL/article/view/13675.