Local coordination geometry around Cu+ and Cu2+ ions in silicate glasses: an X-ray absorption near edge structure investigationC. Maurizio, F. d'Acapito, M. Benfatto, S. Mobilio, E. Cattaruzza and F. GonellaEur. Phys. J. B, 14 2 (2000) 211-216DOI: https://doi.org/10.1007/s100510050122