@misc{indiciaed87d1b5157f0,
  title = {Space transportation systems, 1980-2000},
  author = {Cohan, C. J. and Olstad, W. B. and Patterson, D. W. and Salkeld, R.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790037585},
  note = {Source identifier: 19790037585}
}