1. Behaviour of trace element during magmatic processes. A summary of theoretical models and their applications;Arth;Journal Research US Geological Survey,1976
2. Generation of sodium-rich magmas from newly underplated basaltic crust;Atherton;Nature,1993
3. Geology, geochemistry, age and tectonic setting of the Gore-Gambella plutonic rocks, western Ethiopia;Ayalew,1989
4. Magmatic arc intrusive complexes in the Birbir Domain, western Ethiopia;Ayalew,1987
5. Geochronology of the western Ethiopian Shield;Ayalew;Geological Society America Bulletin,1990