Wei, Ruoyu, and Jinde Cao. “Global Exponential Synchronization of Quaternion-Valued Memristive Neural Networks With Time Delays”. Nonlinear Analysis: Modelling and Control 25, no. 1 (January 10, 2020): 36–56. Accessed May 2, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/15724.