@misc{indiciae7221a1931488,
  title = {Relative displacement measurements for two-body problems},
  author = {Post, D. and Czarnek, R. and Wood, J. and Joh, D.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860049883},
  note = {Source identifier: 19860049883}
}