@misc{indiciae13b6fdfabd80,
  title = {Method and System for Determining Relative Displacement and Heading for Navigation},
  author = {Sheikh, Suneel Ismail and Pines, Darryll J. and Conroy, Joseph Kim and Spiridonov, Timofey N.},
  year = {2015},
  url = {https://ntrs.nasa.gov/citations/20150003456},
  note = {Source identifier: 20150003456}
}