@misc{indiciae02e9c314671b,
  title = {Modified colorimetric ninhydrin methods for peptidase assay.},
  author = {E Doi and D Shibata and T Matoba},
  year = {1981},
  doi = {10.1016/0003-2697(81)90175-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/7039409/},
  note = {Source identifier: 7039409}
}