AMSil, Redakcja. “Report of Meeting. The First Katowice-Debrecen Winter Seminar on Functional Equations, February 7-10, 2001, Cieszyn, Poland”. Annales Mathematicae Silesianae 15 (September 28, 2001): 87-102. Accessed May 18, 2024. https://journals.us.edu.pl/index.php/AMSIL/article/view/14118.