@misc{indiciaea360e49647c7,
  title = {Program requirements for the DRAFT 2 system, revision A},
  author = {Alvarez, J. C. and Runnels, R. L.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710001851},
  note = {Source identifier: 19710001851}
}