@misc{indiciae1a0d6dbaa56c,
  title = {Automatic celestial guidance. II - New challenge to designers' ingenuity.},
  author = {Carroll, J. E. and Lillestrand, R. L. and Newcomb, J. S.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660046353},
  note = {Source identifier: 19660046353}
}