@misc{indiciae44eedd81d85d,
  title = {The early environment and its evolution on Mars - Implications for life},
  author = {Mckay, Christopher P. and Stoker, Carol R.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890066457},
  note = {Source identifier: 19890066457}
}