Le, Van Hien. “A Note on the Asymptotic Stability of Fuzzy Differential Equations”. Ukrains’kyi Matematychnyi Zhurnal 57, no. 7 (July 25, 2005): 904–911. Accessed May 2, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3652.