Determination of eigen frequencies and shapes of eigen oscillations of fluid in composed reservoirs. Neliniini Kolyvannya, [S. l.], v. 18, n. 1, p. 120–132, 2015. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/774. Acesso em: 21 jan. 2026.