Generation of (F$^{+}_{2})_{\rm AH}$ Centres in Sodium Ion Doped KCl:CO$\mathsf{^{2-}_{3}}$ M. Diaf, I. Chihi, A. Hamaïdia and El. Akrmi J. Phys. III France, 6 1 (1996) 1-6 DOI: 10.1051/jp3:1996111