TRIPPENBACH, M.; VAN, C. L. Conference on Nonlinear Optics and Novel Materials. Photonics Letters of Poland, [S. l.], v. 8, n. 3, p. pp. 63, 2016. DOI: 10.4302/photon. lett. pl.v8i3.674. DisponĂ­vel em: https://www.photonics.pl/PLP/index.php/letters/article/view/8-23. Acesso em: 6 jun. 2023.