@article{small,
  title={Amino acid racemases: Functions and mechanisms},
  author={Tohru Yoshimura, Nobuyoshi Esak},
  journal={Journal of Bioscience and Bioengineering},
  volume={96},
  pages={103-109},
  year={2003},
  doi={https://doi.org/10.1016/S1389-1723(03)90111-3}
}