GOŁAŚ, Andrzej; FILIPEK, Roman. Numerical Simulation for the Bell Directivity Patterns Determination. Archives of Acoustics, [S. l.], v. 34, n. 4, p. 415–427, 2014. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/585. Acesso em: 26 apr. 2025.