1. Geochemical and mineralogical studies at Um Ara rare metals prospect, Southeastern Desert, Egypt;Abdalla,1996
2. Mineral chemistry of albite-enriched granitoids at Um Ara, Southeastern Desert, Egypt;Abdalla;Int. Geol. Rev.,1994
3. On the albite-enriched granitoids at Um Ara area, Southeastern Desert, Egypt. 2. Feldspar chemistry, microstructures and mineralogy;Abdalla,1996
4. The effects of K, Na and F on rock-forming mineral assemblages and the formation of tantaloniobate mineralisation in rare-element granite pegmatites;Alexandrov;Geoch. Int.,1985
5. Influence of physico-chemical factors upon the intensity and rate of the process of microcline replacement by albite;Balitskiy;Geokhimiya,1971