1. Iron-titanium oxide minerals and synthetic equivalents;Buddington;J. Petrology,1964
2. Subsolidus reduction of lunar spinels;Haggerty;Nature, Phys. Sci.,1971
3. Fra Mauro crystalline rocks: mineralogy, geochemistry and sub-solidus reduction of the opaque minerals;El Goresy,1972
4. The opaque minerals in the lunar rocks from Oceanus Procellarum;El Goresy,1971
5. Opaque mineralogy and textural features of Apollo 12 samples and a comparison with Apollo 11 rocks;Taylor,1971