@misc{indiciae5fd14c819e51,
  title = {Positional estimation techniques for an autonomous mobile robot},
  author = {Nandhakumar, N. and Aggarwal, J. K.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910004412},
  note = {Source identifier: 19910004412}
}