1. The Structure of Electronic Excitation Levels in Insulating Crystals
2. C. Benoit à la Guillaume, J. M. Debever, and F. Salvan, in Proceedings of the International Conference on II-VI Semiconducting Compounds, Providence, R. I. 1967, Benjamin, N. Y. 1967, p. 669.
3. Exciton-Exciton Interaction in CdS, CdSe, and ZnO
4. Kinetics of Excitons in CdS at Temperature
5. Radiative Recombination in Highly Excited CdS