@misc{indiciae35369881a5d2,
  title = {Enhanced orbit determination filter: Inclusion of ground system errors as filter parameters},
  author = {Masters, W. C. and Scheeres, D. J. and Thurman, S. W.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19940025153},
  note = {Source identifier: 19940025153}
}