AMSilR. (2011). Report of Meeting: The Eleventh Katowice–Debrecen Winter Seminaron Functional Equations and Inequalities, Wisła-Malinka (Poland), February 2–5, 2011. Annales Mathematicae Silesianae, 25, 103-118. Retrieved from https://journals.us.edu.pl/index.php/AMSIL/article/view/14025