@misc{indiciae62263273b6dc,
  title = {Development of enzyme systems.},
  author = {P Hahn and J Skala},
  year = {1971},
  doi = {10.1097/00003081-197109000-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/4400781/},
  note = {Source identifier: 4400781}
}