@misc{indiciae7a54dc5c069e,
  title = {Observation model and parameter partials for the JPL geodetic (GPS) modeling software 'GPSOMC'},
  author = {Sovers, O. J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900018458},
  note = {Source identifier: 19900018458}
}