SIKORA, Marjan; MATELJAN, Ivo; BOGUNOVIĆ, Nikola. Beam Tracing with Refraction. Archives of Acoustics, [S. l.], v. 37, n. 3, p. 301–316, 2013. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/95. Acesso em: 26 apr. 2025.