S. R. Kondja, S. M. N. Ondo, A. E. Minko, and F. M. Mikolo, “The Bélinga Iron Ore Deposit (~2.8 Ga), NE-Gabon: Reactualization and New Interpretations on Crests”, ESJ, vol. 13, no. 24, p. 307, Aug. 2017.