@misc{indiciae9d1120a1ee02,
  title = {Activators of photoluminescence in calcite: evidence from high-resolution, laser-excited luminescence spectroscopy},
  author = {V.A. Pedone and K.R. Cercone and R.C. Burruss},
  year = {1990},
  doi = {10.1016/0009-2541(90)90112-k},
  url = {https://pubs.usgs.gov/publication/70016049},
  note = {Source identifier: 70016049}
}