PROBLEM RELATED TO THE MBE GROWTH AT HIGH SUBSTRATE TEM0PERATURE FORGaAs-Ga1-xAlxAs DOUBLE HETEROSTRUCTURE LASERS F. Alexandre, N. Duhamel, P. Ossart, J.M. Masson et C. Meillerat J. Phys. Colloques, 43 C5 (1982) C5-483-C5-489 DOI: 10.1051/jphyscol:1982559