AMSil, Redakcja. “Report of Meeting. The Third Katowice-Debrecen Winter Seminar on Functional Equations and Inequalities January 29 - February 1, 2003, Będlewo, Poland”. Annales Mathematicae Silesianae 17 (September 30, 2003): 67-84. Accessed May 18, 2024. https://www.journals.us.edu.pl/index.php/AMSIL/article/view/14102.