@misc{indiciae3f50cf45013f,
  title = {Cargo Logistics Airlift Systems Study (CLASS). Volume 5: Summary},
  author = {Burby, R. J. and Kuhlman, W. H.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800024874},
  note = {Source identifier: 19800024874}
}