CIPLEA, Sorina Anamaria; LUNGU, Nicolaie. Ulam stability of Volterra integral equation on a generalized metric space. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 65, n. 2, p. 303–308, 2020. DOI: 10.24193/subbmath.2020.2.11. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/2551. Acesso em: 5 feb. 2025.