TY  - RPRT
TI  - Modified colorimetric ninhydrin methods for peptidase assay.
AU  - E Doi
AU  - D Shibata
AU  - T Matoba
PY  - 1981
DO  - 10.1016/0003-2697(81)90175-5
UR  - https://pubmed.ncbi.nlm.nih.gov/7039409/
ID  - 7039409
ER  -