@misc{indiciaef1a557d46176,
  title = {Retention of human system capabilities during manned space flight},
  author = {Gervais, R. L. and Konecci, E. B.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19640001899},
  note = {Source identifier: 19640001899}
}