LOZYNSKA, V.Ya. Exponential type distributions and a generalized functional calculus for generators of $C_0$-groups. Carpathian Mathematical Publications, [S. l.], v. 3, n. 1, p. 73–84, 2011. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/3089. Acesso em: 4 may. 2024.