@misc{indiciae969c57041879,
  title = {Observation model and parameter partials for the JPL VLBI parameter estimation software MODEST, 19 94},
  author = {Sovers, O. J. and Jacobs, C. S.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950016436},
  note = {Source identifier: 19950016436}
}