@misc{indiciaeb4875b4b66ec,
  title = {Man-computer roles in space navigation and guidance, phase I},
  author = {Crumley, L. P. and Farber, E. and Spiegel, L.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670009399},
  note = {Source identifier: 19670009399}
}