DOUBLE-EXCHANGE INTERACTION AS THE MAIN MECHANISM DRIVING A VERY STRONG FERROMAGNETIC COUPLING IN THE SPINEL SYSTEM Cd1-xCuxCr2Se4 J. Krok-Kowalski, J. Warczewski et T. MydlarzJ. Phys. Colloques, 49 C8 (1988) C8-881-C8-882DOI: https://doi.org/10.1051/jphyscol:19888399