@misc{indiciaef4b1fab5cb5c,
  title = {The REFSAT approach to low-cost GPS terminals},
  author = {Sennott, J. W. and Choudhury, A. K. and Taylor, R. E.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790019993},
  note = {Source identifier: 19790019993}
}