@misc{indiciaed6851156cbb6,
  title = {Notes on interpretation of geophysical data over areas of mineralization in Afghanistan},
  author = {Benjamin J. Drenth},
  year = {2011},
  doi = {10.3133/ofr20111258},
  url = {https://pubs.usgs.gov/publication/ofr20111258},
  note = {Source identifier: ofr20111258}
}