1. STAFF-INDUSTRY COLLABORATIVE REPORT Vapor-Phase Production of Colloidal Silica
2. 2W. H. Dumbaugh, P. C. Schultz, R. E. Kirk, and D. F. Othmer ; pp. 73 -105 inEncyclopedia of Chemical Technology , Vol. 18 , 2d ed. Wiley & Sons. New York, 1969 .
3. (b) Donald B. Keck, and P. C. Schultz , "Method of Producing Optical Wave-Guide Fibers ," US. Pat. 3, 711, 262. 1973 .
4. 4J. B. MacChesney, P. B. O'Connor, F. V. DiMarcello, J. R. Simpson, P. D. Lazay, M. Kunugi, M. Tashiro, and N. Saga ; pp, 6-40 -6-45 inTenth International Congress on Glass , Part I. Ceramic Society of Japan, Kyoto, 1974 .