@misc{indiciae80cda215a4fe,
  title = {Locating magnetic contacts: A comparison of the horizontal gradient, analytic signal, and local wavenumber methods},
  author = {Jeffrey Phillips},
  year = {2012},
  doi = {10.1190/1.1816078},
  url = {https://pubs.usgs.gov/publication/70217736},
  note = {Source identifier: 70217736}
}