@misc{indiciaeab11fb001fbe,
  title = {Project Early Rise: Traveltimes and amplitudes},
  author = {David H. Warren and J. H. Healy and J.C. Hoffman and Reinis Kempe and Srinivasreddy Rauula and D. J. Stuart},
  year = {1968},
  doi = {10.3133/ofr68314},
  url = {https://pubs.usgs.gov/publication/ofr68314},
  note = {Source identifier: ofr68314}
}