Application of the Ritz method to the determination of free vibrations of conjugate shells of revolution. Neliniini Kolyvannya, [S. l.], v. 22, n. 3, p. 406–422, 2019. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/959. Acesso em: 11 apr. 2026.