CZARNECKI, Stefan; WYGAŃSKI, Władysław. Quasi-nonlinear distortion of signals in closed space for an unsteady state. Archives of Acoustics, [S. l.], v. 7, n. 2, p. 83–106, 1982. Disponível em: https://acoustics.ippt.gov.pl/index.php/aa/article/view/3273. Acesso em: 4 mar. 2026.