@misc{indiciae57d213fc54db,
  title = {The SIMPSONS project: An integrated Mars transportation system},
  author = {Kaplan, Matthew and Carlson, Eric and Bradfute, Sherie and Allen, Kent and Duvergne, Francois and Hernandez, Bert and Le, David and Nguyen, Quan and Thornhill, Brett},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930008963},
  note = {Source identifier: 19930008963}
}