@article{small,
  title={Amino acid racemization on Mars:  implications for the preservation of biomolecules from an extinct martian biota.},
  author={Bada JL,McDonald GD},
  journal={Icarus},
  volume={114},
  pages={139-43},
  year={1995},
  doi={https://doi.org/10.1006/icar.1995.1049}
}