BOBROWSKI, A. The Widder-Arendt theorem on inverting of the Laplace transform, and its relationships with the theory of semigroups of operators. Methods of Functional Analysis and Topology, [S. l.], v. 3, n. 4, p. 1–39, 1997. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/46. Acesso em: 19 dec. 2025.