Mara, Saed, and Beh Beh. “Neumann-Boundary Stabilization of the Wave Equation With Internal Damping Control and Applications”. JOURNAL OF ADVANCES IN MATHEMATICS 10, no. 4 (April 16, 2015): 3394–3411. Accessed July 22, 2024. https://rajpub.com/index.php/jam/article/view/1238.