IZADI, Sadegh; JAHEDI, Sedigheh; DEHGHANIAN, Mehdi. Conditional equations related to Drygas functional equations. Annales Mathematicae Silesianae, [S. l.], v. 40, n. 1, p. 98–111, 2025. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/22804. Acesso em: 8 apr. 2026.