ŁABOWSKI, Miikołaj. Amplitude and phase fluctuations of an ultrasonic wave in a nonuniform medium. Archives of Acoustics, [S. l.], v. 5, n. 1, p. 91–112, 2016. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3330. Acesso em: 26 apr. 2025.