@misc{indiciae71d9e6fdc851,
  title = {A 2007 Mars Sample Return Mission Utilizing In-Situ Propellant Production},
  author = {Guernsey, C. and Dawson, S. and Voorhees, C. and Rapp, D. and Thunnissen, D.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20210003741},
  note = {Source identifier: 20210003741}
}