1. RESA—A wholly new process for fine oxide powder preparation
2. 3T. Svedberg , Colloid Chemistry, Chemical Catalog, Part I. New York, 1924 .
3. 4P. Ravindranathan, and R. Roy ; private communication.
4. 5Powder Diffraction File, Card No. 291129. Joint Committee on Powder Diffraction Standards, Swarthmore, PA, 1979 .