1. The polymorphism of MgSiO3 and solid state equilibria in the system MgSiO3 — CaMgSi2O6;Atlas;Journal Geol.,1952
2. Alumina content of orthopyroxene as a geologic barometer;Banno;Jap. Journal. Geol. Geog.,1964
3. Coexisting pyroxenes in igneous and metamorphic rocks;Bartholomé;Geol. Mag.,1961
4. Iron-magnesium ratio in associated pyroxenes and olivines;Bartholomé;Geol. Soc. Am., Buddington Vol.,1962
5. Minerals of the mantle: aluminous enstatite;Boyd;Rep. Geophys. Lab., Carneg. Instn.,1960