@misc{indiciaec03b1153520a,
  title = {Program MARQHXY; Marquardt inversion of Hx and Hy frequency soundings from a grounded wire source},
  author = {Walter L. Anderson},
  year = {1980},
  doi = {10.3133/ofr80901},
  url = {https://pubs.usgs.gov/publication/ofr80901},
  note = {Source identifier: ofr80901}
}