@misc{indiciae20789bc78a78,
  title = {Space tug aerobraking study. Volume 1: Executive summary},
  author = {Corso, C. J. and Eyer, C. L.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720017265},
  note = {Source identifier: 19720017265}
}