AMSIL, Redakcja. Report of Meeting: The Ninth Katowice–Debrecen Winter Seminar on Functional Equations and Inequalities, Będlewo (Poland), February 4–7, 2009. Annales Mathematicae Silesianae, [S. l.], v. 23, p. 103–117, 2009. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14047. Acesso em: 5 jul. 2025.