@misc{indiciae5e0dfbb6c127,
  title = {Mars transportation system synthesis},
  author = {Young, Archie C. and Mulqueen, John A. and Emrich, William J.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930041310},
  note = {Source identifier: 19930041310}
}