@misc{indiciae206e98eb0bd7,
  title = {Transfer Trajectory Options for Servicing Sun-Earth-Moon Libration Point Missions},
  author = {Folta, David C. and Webster, Cassandra},
  year = {2019},
  url = {https://ntrs.nasa.gov/citations/20190000079},
  note = {Source identifier: 20190000079}
}