MÖSSBAUER EFFECT STUDY OF THE Sn0.9Ge0.1Te SYSTEM V. Fano, E. Maniezzi, I. Ortalli, N. Burriesci et M. Petrera J. Phys. Colloques, 40 C2 (1979) C2-624-C2-626 DOI: 10.1051/jphyscol:19792217