@misc{indiciaedb0114d92ccb,
  title = {Deep-space navigation applications of improved ground-based optical astrometry},
  author = {Null, G. W. and Owen, W. M., Jr. and Synnott, S. P.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930010233},
  note = {Source identifier: 19930010233}
}