MANEL, A. Solving Helmholtz problem with a fast numerical strategy based on Toeplitz structure. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 6, n. 2, p. 970–987, 2014. DOI: 10.24297/jam.v6i2.3653. Disponível em: https://rajpub.com/index.php/jam/article/view/3653. Acesso em: 12 may. 2024.