XANES COMPARATIVE STUDY OF RUTILE SOLID SOLUTIONS : (Ti,V)O2, (Ti,Nb)O2 AND (Ti,Ta)O2 B. POUMELLEC, J.F. MARUCCO et B. TOUZELIN J. Phys. Colloques, 47 C8 (1986) C8-709-C8-712 DOI: 10.1051/jphyscol:19868133