AMSil R. Report of Meeting. The Thirteenth Katowice–Debrecen Winter Seminar on Functional Equations and Inequalities, Zakopane (Poland), January 30 – February 2, 2013. AMSil [Internet]. 30Sep.2013 [cited 15May2024];27:107-25. Available from: https://journals.us.edu.pl/index.php/AMSIL/article/view/14008