JAMIL, F.; KONDRATIEV, Yu. G.; MENCHAVEZ, Sh.; STREIT, L. Automorphisms generated by umbral calculus on a nuclear space of entire test functions. Methods of Functional Analysis and Topology, [S. l.], v. 24, n. 4, p. 339–348, 2018. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/704. Acesso em: 15 dec. 2025.