@misc{indiciae2135208bbbd2,
  title = {Life support approaches for Mars missions},
  author = {Drysdale, A. E. and Ewert, M. K. and Hanford, A. J.},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20040087862},
  note = {Source identifier: 20040087862}
}