OF MEETING, R. Conference on Ulam’s Type Stability Rytro, Poland, June 2-6, 2014. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 13, p. 139–169, 2014. Disponível em: https://studmath.uken.krakow.pl/article/view/13191. Acesso em: 29 oct. 2026.