%0 Journal Article %T Optical absorption and electron spin resonance studies of Cu2+ in Li2Oa£¿£¿Na2Oa£¿£¿B2O3a£¿£¿As2O3 glasses %A K Siva Kumar %A M Purnima %A N Srinivasa Rao %A Shashidhar Bale %A Syed Rahman %J - %D 2005 %U https://www.ias.ac.in/describe/article/boms/028/06/0589-0592