1. GaAs and Related Compounds–1976;Butlin;Inst. Phys. Conf. Series,1977
2. GaAs and Related Compounds—1976;Crossley;Inst. Phys. Conf. Series,1977
3. GaAs and Related Compounds—1978;Tuck;Inst. Phys. Conf. Series,1979
4. GaAs and Related Compounds—1976;Stauss;Inst. Phys. Conf. Series,1977