@misc{indiciae85cbf7f65a0b,
  title = {Deriving a unique reference frame for GPS measurements},
  author = {Malla, Rajendra P. and Wu, Sien-Chong},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890039343},
  note = {Source identifier: 19890039343}
}