RAMÓN, J. C.; DZOU, L.; GIRALDO, B. Geochemical evaluation of the middle Magdalena basin, Colombia. CT&F - Ciencia, Tecnología y Futuro, [S. l.], v. 1, n. 3, p. 47–66, 1997. DOI: 10.29047/01225383.587. Disponível em: https://ctyf.journal.ecopetrol.com.co/index.php/ctyf/article/view/587. Acesso em: 6 may. 2024.