NEAR-INFRARED PHOTOLUMINESCENCE OF THE EUROPIUM-CHALCOGENIDES AND A PROPOSED MAGNETIC POLARON MODEL G. BUSCH, P. STREIT et P. WACHTERJ. Phys. Colloques, 32 C1 (1971) C1-926-C1-927DOI: https://doi.org/10.1051/jphyscol:19711330
