AMSilR. (2004) “Report of Meeting. The Fourth Debrecen-Katowice Winter Seminar on Functional Equations and Inequalities February 4-7, 2004 Matráháza, Hangary”, Annales Mathematicae Silesianae, 18, pp. 65-75. Available at: https://www.journals.us.edu.pl/index.php/AMSIL/article/view/14092 (Accessed: 18May2024).