V. S. Denisenko, A. A. Martynyuk, and V. I. Slyn'ko, “On the mappings preserving the Lyapunov stability of Takagi–Sugeno fuzzy systems”, Ukr. Mat. Zhurn., vol. 61, no. 5, pp. 641–649, May 2009, Accessed: Apr. 07, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3047