KLAMKA, Jerzy. Controllability of infinite-dimensional systems with delays in control. Annales Mathematicae Silesianae, [S. l.], v. 1, p. 51–65, 1985. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14336. Acesso em: 7 may. 2025.