1. Reduction of chromium trioxide to a ternary oxide of chromium;Addison;J. Chem. Soc.,1965
2. Davis , M. Draycott , A. 1958
3. Diffussion coefficient for oxygen in alpha zirconium;Davis;J. Inst. Met.,1960
4. Columbium-Oxygen system;Elliot;Trans. Amer. Soc. Metals.,1958
5. Evans , J. W. Thorley , A. 1958 Corrosion of niobium and vanadium in liquid sodium