@misc{indiciaeb6a8dfcc1612,
  title = {Multiple-camera/motion stereoscopy for range estimation in helicopter flight},
  author = {Smith, Phillip N. and Sridhar, Banavar and Suorsa, Raymond E.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940021013},
  note = {Source identifier: 19940021013}
}