RAZMYSLOVICH, Georgii P.; KRAKHOTKO, Valerii V. Controllability linear systems with many delays in control by the differential regulators. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 3, p. 82–85, 2019. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/1016. Acesso em: 18 jul. 2026.