[1]Hien, V.Q. et al. 2016. FREE VIBRATION ANALYSIS OF JOINED COMPOSITE CONICAL-CONICAL-CONICAL SHELLS CONTAINING FLUID. <i>Vietnam Journal of Science and Technology</i>. 54, 5 (Oct. 2016), 650. DOI:https://doi.org/10.15625/0866-708X/54/5/7684.