1. 1L. H. Sjodahl, and S. F. Bartram , "Grain Orientation in Extruded BeO"; presented at the Fall Meeting , Basic Science Division, The American Ceramic Society, Columbus, Ohio, October 9, 1962 (Paper No. 14-B-62F).
2. Fabrication and properties of extruded and sintered BeO
3. 3A. S. Creamer , National Bureau of Standards, Washington, D. C.; unpublished report (1944 ), "Percent Expansion of Single Crystal Alumina from 50o to 1700oC).
4. Linear Thermal Expansion of Aluminum Oxide and Thorium Oxide from 100o to 1100oK