@misc{indiciae71b966a66def,
  title = {Computation of optimal low- and medium-thrust orbit transfers},
  author = {Chuang, C.-H. and Goodson, Troy D. and Hanson, John},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930067445},
  note = {Source identifier: 19930067445}
}