HOLHOȘ, Adrian. King-type operators related to squared Szász-Mirakyan basis. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 65, n. 2, p. 279–290, 2020. DOI: 10.24193/subbmath.2020.2.09. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/2545. Acesso em: 5 feb. 2025.