Plotnikov, V. A., and V. M. Savchenko. “On Averaging of Differential Inclusions in the Case Where the Average of the Right-Hand Side Does Not Exist”. Ukrains’kyi Matematychnyi Zhurnal 48, no. 11 (November 25, 1996): 1572–1575. Accessed April 7, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/5212.