OZIMEK, E. Report on the second congress fase - 78 Warsaw, September 18-22, 1978. Archives of Acoustics, [S. l.], v. 4, n. 2, p. 177–189, 2016. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3376. Acesso em: 13 jan. 2025.