@misc{indiciaef78a31c57970,
  title = {Spacelab experiment computer study. Volume 4: Spacelab user cost data (central experiment computer)},
  author = {Lewis, J. L. and Hodges, B. C. and Christy, J. O.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770006157},
  note = {Source identifier: 19770006157}
}