Gristchak, V. Z., and Ye. M. Dmitrijeva. “A Hybrid WKB-Galerkin Method and Its Application”. Technische Mechanik - European Journal of Engineering Mechanics 15, no. 4 (October 20, 2019): 281–294. Accessed November 22, 2024. https://journals.ub.ovgu.de/index.php/techmech/article/view/1275.