AMSil, Redakcja. “Report of Meeting. The Sixth Debrecen-Katowice Winter Seminar On Functional Equations and Inequalities February 1-4, 2006, Berekfürdő, Hungary”. Annales Mathematicae Silesianae 20 (September 29, 2006): 87-99. Accessed May 14, 2024. https://journals.us.edu.pl/index.php/AMSIL/article/view/14070.