@misc{indiciae2b19d2ab3d2b,
  title = {Gel diffusion method for determination of pepsin.},
  author = {W Doleschel and W Auerswald},
  year = {1973},
  doi = {10.1016/0009-8981(73)90349-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4587487/},
  note = {Source identifier: 4587487}
}