@misc{indiciaebf705ec74d5c,
  title = {Improved navigation by combining VOR/DME information and air data},
  author = {Bobick, J. C. and Bryson, A. E., Jr.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710056477},
  note = {Source identifier: 19710056477}
}