FILIPCZYŃSKI, Leszek; KUJAWSKA, Tamara. Acoustical shadow of a sphere immersed in water. II. Archives of Acoustics, [S. l.], v. 14, n. 3-4, p. 181–190, 1989. Disponível em: http://acoustics.ippt.gov.pl/index.php/aa/article/view/3047. Acesso em: 22 apr. 2026.