@misc{indiciae7d74b451fcde,
  title = {Visible quantum cutting in LiGdF4:Eu3+ through downconversion},
  author = {RT Wegh and H Donker and KD Oskam and A Meijerink},
  year = {1999},
  doi = {10.1126/science.283.5402.663},
  url = {https://pubmed.ncbi.nlm.nih.gov/9924020/},
  note = {Source identifier: 9924020}
}