@misc{indiciae5ec7b757da07,
  title = {Geological Survey Computer Contribution Number 3 Nonconstant Variance Regresion Analysis Program},
  author = {Marshall Strong Hellmann},
  year = {1970},
  doi = {10.3133/ofr70159},
  url = {https://pubs.usgs.gov/publication/ofr70159},
  note = {Source identifier: ofr70159}
}