@misc{indiciae1253e5571649,
  title = {Propulsion systems using in situ propellants for a Mars ascent vehicle},
  author = {Wadel, Mary F. and Roncace, Elizabeth A.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920018411},
  note = {Source identifier: 19920018411}
}