Bochkarev, Sergey Arkadievich, and Sergey Vladimirovich Lekomtsev. “Natural Vibrations of Non-Circular Cylindrical Shells Partially Filled With Fluid With Sloshing of Free Surface”. Computational Continuum Mechanics, vol. 7, no. 4, Dec. 2014, pp. 471-80, https://doi.org/10.7242/1999-6691/2014.7.4.45.