@misc{indiciaea9b0369a8fee,
  title = {[Multiply upconversion emission in oxyfluoride ceramics].},
  author = {Si-guo Xiao and Xiao-liang Yang and Zhen-wei Liu},
  year = {2003},
  url = {https://pubmed.ncbi.nlm.nih.gov/12939954/},
  note = {Source identifier: 12939954}
}