AKHMETOV, M. U.; SEILOVA, R. D. Rank criteria for the controllability of a boundary-value problem for a linear system of integro-differential equations with pulse influence. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 6, p. 723–730, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4466. Acesso em: 5 dec. 2025.