Anisotropic exciton states in GaAs/AlAs superlattices in zero and non-zero magnetic field C. GOURDON, D.Yu. RODICHEV, P. LAVALLARD, G. BACQUET et R. PLANEL Le Journal de Physique IV, 03 C5 (1993) C5-183-C5-186 DOI: 10.1051/jp4:1993534