A Semigroup Approach to Nonlinear Equation of Age-dependent Population Dynamics. Journal of Partial Differential Equations, [S. l.], v. 5, n. 2, p. 1–16, 1992. Disponível em: https://global-sci.com/index.php/jpde/article/view/3707. Acesso em: 6 dec. 2025.