@misc{indiciae875fbc00bd92,
  title = {EPOCH 2002 user's guide for ultrasonic velocity measurements in glacier ice},
  author = {J. J. Fitzpatrick},
  year = {1992},
  doi = {10.3133/ofr92534},
  url = {https://pubs.usgs.gov/publication/ofr92534},
  note = {Source identifier: ofr92534}
}