@misc{indiciae557567801ab1,
  title = {Design options for advanced manned launch systems (AMLS)},
  author = {Freeman, Delma C. and Talay, Theodore A. and Stanley, Douglas O. and Wilhite, Alan W.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910025546},
  note = {Source identifier: 19910025546}
}