Abouatia, Hiba, Amar Guesmia, and Khaled Zennir. “Strict Decay Rate for System of Three Nonlinear Wave Equations Depending on the Relaxation Functions”. Journal of Applied Nonlinear Dynamics 11, no. 2 (August 17, 2026): 309–321. Accessed August 17, 2026. https://lhscientificpublishing.com/index.php/jand/article/view/525.