[1]
C. R. Posada, A. Rangel, P. Rodríguez, L. E. Pérez, and R. Gaviria, “Reservoir geochemistry of the Caballos formation in the Orito field. Putumayo-Colombia”, CT&F Cienc. Tecnol. Futuro, vol. 2, no. 2, pp. 105–124, Dec. 2001.