On Salem Formal Power Series. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 15, n. 3, p. 1321–1330, 2022. DOI: 10.29020/nybg.ejpam.v15i3.4463. Disponível em: https://ejpam.com/index.php/ejpam/article/view/4463.. Acesso em: 5 may. 2024.