NAGNIBIDA, N. I. On the equivalence of the Euler-Pommier operators in spaces of analytic functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 7, p. 958–971, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5269. Acesso em: 14 apr. 2025.