@misc{indiciae5d904f7bf73f,
  title = {Texas Instruments Model 59 hand-calculator programs to calculate CIPW norms},
  author = {R.L. Mackie},
  year = {1982},
  doi = {10.3133/ofr82821},
  url = {https://pubs.usgs.gov/publication/ofr82821},
  note = {Source identifier: ofr82821}
}