@misc{indiciaea3e0882f3b79,
  title = {Position location and data collection system and method Patent},
  author = {Hilton, G. E. and Hollenbaugh, R. C. and Laughlin, C. R., Jr. and Lavigne, R. C.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19710006615},
  note = {Source identifier: 19710006615}
}