@misc{indiciae57e0be7bd2c4,
  title = {Systematic Errors in Radio Source Positional Coordinates},
  author = {Sovers, O. J. and Jacobs, C. S.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/20060038606},
  note = {Source identifier: 20060038606}
}