@misc{indiciaefc0d277269c9,
  title = {Relative Sensor with 4Pi Coverage for Formation Flying Missions},
  author = {Tien, Jeffrey Y. and Purcell, George H., Jr. and Srinivasan, Jeffrey M. and Young, Lawrence E.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20060048517},
  note = {Source identifier: 20060048517}
}