Oh, W.-C.; Ye, S.; Park, J. G.; Lim, C. S. Effects on Photocatalytic Degradation and Hydrogen Evolution of TiO2 Coated CaLa2(MoO4)4 and CaLa2(MoO4)4:Er Yb Nano Core-Shells and Their Upconversion Photoluminescence. ajc 2016, 28, 1108-1114.