PerestyukN. A. and SamoilenkoA. M. (2001) “On the Existence of Periodic Solutions for Certain Classes of Systems of Differential Equations with Random Pulse Influence”, Ukrains’kyi Matematychnyi Zhurnal, 53(8), pp. 1061-1079. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4327 (Accessed: 22November2024).