RT Journal Article SR Electronic(1) A1 Luiz Pimentel, A. A1 Da Cruz Pestana, R.YR 1993 T1 Comparaçăo entre Métodos de Traçado de Raios que Utilizam o Tempo de Trânsite Calculado por Diferenças Finitas JF , VO OP SP cp-324-00010 DO https://doi.org/10.3997/2214-4609-pdb.324.35 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.324.35