Sung Lim, C. (2015) “Synthesis of KLa(WO4)2:Ho3+/Yb3+ Phosphors via Microwave-Assisted Sol-Gel Route and their Upconversion Photoluminescence Properties”, Asian Journal of Chemistry, 27(7), pp. 2603–2607. doi: 10.14233/ajchem.2015.18429.