BOCHKAREV, Sergey Arkad’yevich. Natural vibrations of truncated conical shells of variable thickness. Computational Continuum Mechanics, Perm, Russia, v. 13, n. 4, p. 402–413, 2020. DOI: 10.7242/1999-6691/2020.13.4.31. Disponível em: https://journal-dev.icmm.ru/index.php/ccm/article/view/CCMv13n4a31. Acesso em: 13 may. 2026.