(1)
Ndougsa–Mbarga, T.; Manguelle–Dicoum, E.; Campos-Enríquez, J.-O.; Yene Atangana, Q. Gravity Anomalies, Sub-Surface Structure and Oil and Gas Migration in the Mamfe, Cameroon-Nigeria, Sedimentary Basin. Geofis Int 2007, 46, 129-139.