SverdanM. L., Tsar’kovE. F., & YasinskyV. K. (1996). Asymptotic behavior of solutions of pulse systems with small parameter and markov switchings. I. Uniform boundedness of solutions. Ukrains’kyi Matematychnyi Zhurnal, 48(10), 1375-1385. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/5223