GoncharenkoM. V., and KhruslovE. Ya. “Averaged Model of Vibration of a Damped Elastic Medium”. Ukrains’kyi Matematychnyi Zhurnal 62, no. 10 (October 25, 2010): 1309–1329. Accessed December 4, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2957.