@misc{indiciaec48d6afb0ed4,
  title = {A short-pulse electromagnetic transponder for hole-to-hole use},
  author = {David L. Wright and Raymond D. Watts and Erik Bramsoe},
  year = {1983},
  doi = {10.1109/tgrs.1984.6499195},
  url = {https://pubs.usgs.gov/publication/70011318},
  note = {Source identifier: 70011318}
}