@misc{indiciae3638105e65cd,
  title = {Mars Surface Systems Common Capabilities and Challenges for Human Missions},
  author = {Toups, Larry and Hoffman, Stephen J. and Watts, Kevin},
  year = {2016},
  url = {https://ntrs.nasa.gov/citations/20160001039},
  note = {Source identifier: 20160001039}
}