PETRE, P. THE WEIGHTED RESIDUAL METHOD FOR WAVE PROPAGATION IN A ONE-DIMENSIONAL INHOMOGENEOUS MEDIUM. Periodica Polytechnica Electrical Engineering, [S. l.], v. 31, n. 3-4, p. 86–97, 1987. Disponível em: https://pp.bme.hu/ee/article/view/4634. Acesso em: 27 dec. 2024.