ELECTROREFLECTANCE AND SPECTROSCOPIC ELLIPSOMETRY STUDIES OF GaAs/GaAlAs HETEROJUNCTIONS C. Alibert, S. Gaillard, M. Erman et P.M. Frijlink J. Phys. Colloques, 44 C10 (1983) C10-229-C10-233 DOI: 10.1051/jphyscol:19831048