@misc{indiciaea13c680ecfba,
  title = {OREDATA : a PC database of optical properties of the opaque minerals, Part D - Executable program},
  author = {Carol N. Gerlitz and Gary I. Selner and Joseph F. Whelan},
  year = {1989},
  doi = {10.3133/ofr89566d},
  url = {https://pubs.usgs.gov/publication/ofr89566D},
  note = {Source identifier: ofr89566D}
}