The Controllability and Observability of Sylvester Matrix Dynamical Systems on Time Scales. International Journal of Food and Nutritional Sciences, [S. l.], v. 10, n. Special Issue 1, p. 57–62, 2021. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/3705. Acesso em: 20 sep. 2026.