A Uniaxial Optimal Perfectly Matched Layer Method for Time-Harmonic Scattering Problems. Communications in Mathematical Research, [S. l.], v. 26, n. 3, p. 255–268, 2021. Disponível em: https://global-sci.com/index.php/cmr/article/view/8663. Acesso em: 5 dec. 2025.