MIROTIN, A. R. Completely monotone functions on lie semigroups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 6, p. 841–845, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4480. Acesso em: 11 apr. 2025.