Feng, Baowei, and Yong Han Kang. “Decay Rates for a Viscoelastic Wave Equation With Balakrishnan-Taylor and Frictional Dampings”. Topological Methods in Nonlinear Analysis 54, no. 1 (July 21, 2019): 321–343. Accessed July 22, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2019.047.