COMPARISON OF OPTICALLY INDUCED LOCALIZED STATES IN CHALCOGENIDE GLASSES AND THEIR CRYSTALLINE COUNTERPARTS S.G. Bishop, B.V. Shanabrook, U. Strom et P.C. Taylor J. Phys. Colloques, 42 C4 (1981) C4-383-C4-386 DOI: 10.1051/jphyscol:1981482