Previous Article Next Article Table of Contents Journal of Materials Science Letters, Vol.15, No.8, 680-682, 1996 DOI10.1007/BF00264112 Export Citation Preparation and Physical-Properties of Y-Ba-Na-Cu-O High-T-C Superconductors Ramay SM, Yousaf M, Maqsood M, Maqsood A Keywords:SUBSTITUTION;LI Please enable JavaScript to view the comments powered by Disqus.