[1]
Song, J., Zhi, G., Zhang, Y. and Mei, B. 2011. Synthesis and Characterization of CaF2 Nanoparticles with Different Doping Concentrations of Er3+. Nano-Micro Letters. 3, 2 (Jun. 2011), 73-78. DOI:https://doi.org/10.1007/BF03353654.