1. 1"Mica ," U. S. Tariff Commission, War Changes in Industry Series, Report No. 21, 1947 . 88 pp.
2. 2(a)R. Reichmann, and V. Middel, "Production of Synthetic Mica," FIAT Microfilm Reel B-288, Frames 1-52 (1942) ;
3. PB 70,371, (in German);, 1949, August, p. 195.
4. (b)R. Reichmann, and V. Middel, "Experiments for Development of a Method for Determining Crystallization Rate of Artificial Mica," FIAT Microfilm Reel B-285, Frames 1-24 (1943) ;
5. PB 70,369 (in German);, 1949, August p. 195.