KARAFIAT, Andrzej. Convergence estimates for the acoustic scattering problem approximated by NURBS. Computer Assisted Methods in Engineering and Science, [S. l.], v. 20, n. 4, p. 289–307, 2017. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/60. Acesso em: 12 jan. 2025.