@misc{indiciae62959f009849,
  title = {Dielectric function of CaF2 between 10 and 35 eV.},
  author = {J Barth and RL Johnson and M Cardona and D Fuchs and AM Bradshaw},
  year = {1990},
  doi = {10.1103/physrevb.41.3291},
  url = {https://pubmed.ncbi.nlm.nih.gov/9994120/},
  note = {Source identifier: 9994120}
}