@misc{indiciae4d83af92d7f3,
  title = {Minimum-fuel ascent to orbit using air-breathing propulsion},
  author = {Van Buren, Mark A. and Mease, Kenneth D.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890066715},
  note = {Source identifier: 19890066715}
}