STRONG LIGHT-SEMICONDUCTOR INTERACTIONS IN CdS AND GaSe, AND OPTICAL BISTABILITY V. DNEPROVSKII, A. FURTICHEV, V. KLIMOV, Shen LI, E. NAZVANOVA, D. OKOROKOV et U. VANDISHEV J. Phys. Colloques, 49 C2 (1988) C2-241-C2-246 DOI: 10.1051/jphyscol:1988257