AMSil R. Report of Meeting. The Twelfth Debrecen-Katowice Winter Seminar on Functional Equations and Inequalities, Hajdúszoboszló (Hungary), January 25-28, 2012. Ann. Math. Sil. [Internet]. 2013 Jan. 15 [cited 2025 May 7];26:101-17. Available from: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14017