1. H. Barry Bebb and E. W. Williams, Chap. 4 of this volume.
2. Dislocations in GaAs17−xPx
3. Cathodoluminescence of n‐Type GaAs
4. B. D. Joyce and E. W. Williams, Int. Symp., 3rd, on GaAs and Related Compounds, Aachen, Germany 1970, p. 57. Photoluminescence half width versus carrier concentration for InP compared with GaAs.