YASMIN, N.; MIRZA, S.; YOUNUS, A.; MANSOOR, A. Controllability and observability of linear impulsive adjoint dynamic system on time scale. Tamkang Journal of Mathematics, [S. l.], v. 51, n. 3, p. 201-217, 2020. DOI: 10.5556/j.tkjm.51.2020.2951. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/2951. Acesso em: 23 sep. 2020.