@misc{indiciae811cda74c2b6,
  title = {Systems design experience from three manned space programs},
  author = {Boynton, J. H. and Kleinknecht, K. S.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700059528},
  note = {Source identifier: 19700059528}
}