Ritz solution of the Helmholtz equation in a stadium-shaped domain with zero normal derivatives – applications to fluid sloshing and thermo-convective stability. Archives of Mechanics, [S. l.], v. 69, n. 6, p. 471–483, 2017. Disponível em: https://am3.ippt.pan.pl/index.php/am/article/view/v69p471. Acesso em: 14 may. 2025.