OF MEETING, R. 9th International Conference on Functional Equations and Inequalities, Złockie, September 7–13, 2003. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 5, p. 99–125, 2006. Disponível em: https://studmath.uken.krakow.pl/article/view/13296. Acesso em: 29 oct. 2026.