@misc{indiciae9d3a8320ccbf,
  title = {Recovery of a geocentric reference frame using the present-day GPS system},
  author = {Malla, Rajendra P. and Wu, Sien-Chong},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900059704},
  note = {Source identifier: 19900059704}
}