Hien, Vu Quoc, Tran Ich Thinh, Nguyen Manh Cuong, and Pham Ngoc Thanh. “FREE VIBRATION ANALYSIS OF JOINED COMPOSITE CONICAL-CONICAL-CONICAL SHELLS CONTAINING FLUID”. <i>Vietnam Journal of Science and Technology</i> 54, no. 5 (October 19, 2016): 650. Accessed January 9, 2026. https://vjs.ac.vn/jst/article/view/7684.