1. Phase Diagrams for Ceramists;Hall;J. Am. Ceram. Soc.,1947
2. Ceramics of Highly Refractory Materials: I, Forms of Zirconia;Ruff;Ceram. Abstracts,1929
3. Forms of Zirconia Depending on Treatment;Cohn;Ceram. Abstracts,1930
4. Development of Zirconia Resistant to Thermal Shock,” J;Curtis;Am. Ceram. Soc.,1947
5. Effects of Some Oxide Additions on Thermal Length Changes of Zirconia;Geller;Ceram. Abstracts,1945