ELECTRICAL CONDUCTIVITY OF THE MAGNETIC SPINEL SERIES Mn1-xCuxCr2S4 T. Groń, M. Gogołowicz, J. Warczewski and H.D. Lutz J. Phys. Colloques, 46 C6 (1985) C6-441-C6-444 DOI: 10.1051/jphyscol:1985685