@misc{indiciaedea90faef946,
  title = {Precision formation flight of spacecraft in non-uniform gravity fields},
  author = {Lam, Try and Udwadia, Firdaus E. and Schutte, Aaron},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20060043911},
  note = {Source identifier: 20060043911}
}