Cu+2 or Cu+1 in chalcogenide spinels?

This publication has 5 references indexed in Scilit:

• Tetrahedral-site copper in chalcogenide spinels
  Solid State Communications, 1967
• Neutron diffraction and electrical transport properties of CuCr2Se4
  Journal of Physics and Chemistry of Solids, 1967
• Magnetic and electrical properties of copper containing sulphides and selenides with spinel structure
  Solid State Communications, 1967
• Neutron-Diffraction Investigation of Cu${\mathrm{Cr}}_2$${\mathrm{Se}}_4$ and Cu${\mathrm{Cr}}_2$${\mathrm{Te}}_4$
  Physical Review B, 1967
• Crystallographic Study of Chromium Spinels
  Journal of Applied Physics, 1966