@misc{indiciaed9564dbcb491,
  title = {Use of Global Positioning System Measurements to Determine Geocentric Coordinates and Variations in Earth Orientation},
  author = {R P Malla and S -C Wu and S M Lichten},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940009899},
  note = {Source identifier: 19940009899}
}