KARTASHOV, M. V. General time-dependent bounded perturbation of a strongly continuous semigroup. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 12, p. 1625–1632, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3714. Acesso em: 5 dec. 2025.