@misc{indiciae8da3e685f7df,
  title = {Mars Surface Habitability Options},
  author = {Howe, A. Scott and Simon, Matthew and Smitherman, David and Howard, Robert and Toups, Larry and Hoffman, Stephen J.},
  year = {2015},
  url = {https://ntrs.nasa.gov/citations/20160009675},
  note = {Source identifier: 20160009675}
}