Sung Lim, C. 2014. Synthesis and Spectroscopic Properties of Superparamagnetic Iron Oxide Nanoparticle/CaWO4:Er3+, Yb3+ Composites by Microwave-Assisted Metathetic Method. Asian Journal of Chemistry. 26, 5 (Mar. 2014), 1297–1300. DOI:https://doi.org/10.14233/ajchem.2014.17213.