1. Proceedings 2nd International Congress on Phosphorus Compounds;Anon,1980
2. Some mineral resources of the West African continental shelves related to Holocene shorelines; phosphorite (Gabon, Congo), glauconite (Congo) and ilmenite (Senegal, Mauritania);Barusseau,1987
3. Nd and Sr isotopic composition of East African carbonatites: implications for mantle heterogeneity;Bell;Geology (Boulder),1987
4. Pleistocene phosphorites off the west coast of South Africa;Birch;Nature,1983
5. General presentation of exploration for sedimentary phosphate conducted by BRGM in Africa;Boujo,1988