MartynyukA. A., and Martynyuk-ChernienkoYu. A. “Stability of Motion of Nonlinear Systems With Fuzzy Characteristics of Parameters”. Ukrains’kyi Matematychnyi Zhurnal 64, no. 1 (January 25, 2012): 50-70. Accessed November 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2555.