1. Schmelzdiagramme höchstfeuerfester Oxyde” (Melting-Point Curve of Refractory Oxides);Wartenberg;Z. anorg. u. allgem. Chem.,1928
2. Beitrage zur Keramik höchfeuerfester Stoffe: II, Das System ZrO2-CaO” (Contributions to the Ceramics of Highly Refractory Materials: II, The System Zirconia-Lime);Ruff;Z. anorg. u. allgem. Chem.,1929
3. Stabilization of Zirconia with Calcia and Magnesia;Duwez;J. Am. Ceram. Soc.,1952
4. Development of Zirconia Resistant to Thermal Shock;Curtis;ibid,1947
5. New Refractory Compositions Resistant to Molten Rock Phosphate;Pole;ibid.,1943