THE BAND STRUCTURE PARAMETERS OF PbTe FROM OPTICAL REFLECTIVITY, TRANSMISSION, AND FARADAY EFFECT Ju. V. MALTSEV, I. K. SMIRNOV, Ju. I. UKHANOV and A. N. VEIS J. Phys. Colloques, 29 C4 (1968) C4-99-C4-104 DOI: 10.1051/jphyscol:1968414