@misc{indiciae7f2c6c325307,
  title = {Dynamics of Earth orbiting formations},
  author = {Ploen, Scott R. and Scharf, Daniel P. and Hadaegh, Fred Y. and Acikmese, Ahmed B.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20060043838},
  note = {Source identifier: 20060043838}
}