@misc{indiciaefe4f94958de0,
  title = {Interplanetary navigation in the 1980's and 1990's},
  author = {Wood, L. J. and Jordan, J. F.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810061400},
  note = {Source identifier: 19810061400}
}