@article{small,
  title={Aspartic acid racemization constrains long-term viability and longevity of endospores},
  author={Renxing Liang, Maggie CY Lau, Oliver Baars, Frank T. Robb, and Tullis C. Onstott},
  journal={FEMS Microbiology Ecology},
  volume={95},
  year={2019},
  doi={10.1093/femsec/fiz132}
}