MÖSSBAUER ABSORPTION SPECTRA OF 119Sn IN THE SINGLE CRYSTALS OF (CH3)2Sn(NCS)2, (CH3)2SnCl2(C5H5NO)2, AND (CH3)3SnCn H. Negita, R. Boku and S. Ichiba J. Phys. Colloques, 40 C2 (1979) C2-403-C2-404 DOI: 10.1051/jphyscol:19792140