@misc{indiciae5102144c1aac,
  title = {Fundamental design considerations for an earth-surface-to-orbit shuttle},
  author = {Faget, M. A. and Silveira, M. A.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700068502},
  note = {Source identifier: 19700068502}
}