FATEMI, E. FINITE DIFFERENCE METHODS FOR THE NONLINEAR EQUATIONS OF PERTURBED GEOMETRICAL OPTICS. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 11, n. 1, p. 90–98, 2022. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/17419. Acesso em: 22 jun. 2026.