PUSTELNY, Tadeusz. Professor Marian URBAŃCZYK. Archives of Acoustics, [S. l.], v. 38, n. 4, p. 571–572, 2013. DOI: 10.24425/aoa-2013-0068. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/322. Acesso em: 26 apr. 2025.