1. and , Proc. U. N. 2nd Int. Conf. on Peaceful Uses of Atomic Energy, Pergamon Press 1959 (pp. 437–444).
2. Proc. 2nd Congress Int. Fotobiologia, Turin 1957.
3. For tabulation of color centers in various alkali halides see article by in American Institute of Physics Handbook, Second Edition, Section on Imperfections in Solids, McGraw-Hill, (in Press).
4. The electronic structure of V-centers
5. Absorption Spectra ofF2−,Cl2−,Br2−, andI2−in the Alkali Halides