ŻAK, Andrzej. Ship’s Hydroacoustics Signatures Classification. Archives of Acoustics, [S. l.], v. 33, n. 4(S), p. 85–90, 2008. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/840. Acesso em: 28 apr. 2025.