Mössbauer stuties of neptunium fluorozirconate glass J. Jove, J. Gal, W. Potzel, G. M. Kalvius, J.C. Spirlet et M. Pages J. Phys. Colloques, 40 C4 (1979) C4-190-C4-191 DOI: 10.1051/jphyscol:1979460