@misc{indiciaed21ac4fc3871,
  title = {Resource Utilization and Site Selection for a Self-Sufficient Martian Outpost},
  author = {Barker, Donald and Chamitoff, Gregory and James, George},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/19980147990},
  note = {Source identifier: 19980147990}
}