SVERDAN, M. L.; TSAR’KOV, E. F.; YASINSKY, V. K. Asymptotic behavior of solutions of pulse systems with small parameter and markov switchings. I. Uniform boundedness of solutions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 10, p. 1375–1385, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5223. Acesso em: 5 dec. 2025.