KOMINEK, Zygfryd. On a Jensen–Hosszú equation I. Annales Mathematicae Silesianae, [S. l.], v. 23, p. 57–60, 2009. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/14044. Acesso em: 5 dec. 2025.