@misc{indiciae02bb7186e6d2,
  title = {Robust regional phase association},
  author = {C.E. Johnson and A.G. Lindh and B.F. Hirshorn},
  year = {1997},
  doi = {10.3133/ofr94621},
  url = {https://pubs.usgs.gov/publication/ofr94621},
  note = {Source identifier: ofr94621}
}