@misc{indiciae57020d6d2ccb,
  title = {CASA Uno GPS orbit and baseline experiments},
  author = {Schutz, B. E. and Ho, C. S. and Abusali, P. A. M. and Tapley, B. D.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900043991},
  note = {Source identifier: 19900043991}
}