1. Duwez, P., Brown, F.H.(Jr.), Odell, F., The Zirconia-Yttria System, J. Electrochem. Soc., 98, 356-362 (1951)
2. Foex, M., Traverse, J.P., Comment on High Temperature Phase Transformation in Crystalline Phases of Rare Earth Sesquioxides (in French), Rev. Hautes Temp. Refract., 32, 429-453 (1966)
3. Phalen, D.I., Vaughan, D.A., Richard, N.A., Oxidation of Zr-Y Alloys, Adv. X-Ray Anal., 8, 143-150 (1965)
4. Rouanet, A., Solidification and Phase Diagrams at High Temperature for ZrO2-Er2O3, ZrO2-Y2O3 and ZrO2-Yb2O3 Systems (in French), C. R. Acad. Sc. Paris, 267, 1581-1584 (1968)
5. Wilkins, B.J.S., Chater, J., The Microstructures and Kinetics of Internally Oxidized Dilute Zirconium-Yttrium Alloys, J. Nucl. Mater., 31, 288-299 (1969)