FLUORITE-RELATED PHASES IN RARE-EARTH OXIDE-TUNGSTEN TRIOXIDE SYSTEMS E. SUMMERVILLE, J. DRENNAN et D. J. M. BEVANJ. Phys. Colloques, 38 C7 (1977) C7-73-C7-79DOI: https://doi.org/10.1051/jphyscol:1977715
