@misc{indiciaeef4f82ae01b3,
  title = {Searching for Martian Bio-Indicators and Extant Life Using Spacecraft},
  author = {Allen, Carlton C. and Oehler, Dorothy Z.},
  year = {2019},
  url = {https://ntrs.nasa.gov/citations/20190026709},
  note = {Source identifier: 20190026709}
}