Previous Article Next Article Table of Contents Journal of Materials Science, Vol.39, No.6, 2223-2225, 2004 DOI10.1023/B:JMSC.0000017793.47639.94 Export Citation Frequency upconversion properties of Yb3+-Er3+ co-doped oxyfluoride germanate Yang ZM, Xu SQ, Hu LL, Jiang ZH Please enable JavaScript to view the comments powered by Disqus.