TODOROV, P. VARIATIONAL METHODS FOR THE TOTALLY MONOTONIC FUNCTIONS AND APPLICATIONS. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 94, p. 35–47, 2002. Disponível em: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/188. Acesso em: 21 nov. 2024.