@misc{indiciae910eaa014505, title = {Simple test for identifying penicillinase-producing staphylococci.}, author = {R J Duma and L J Kinz}, year = {1968}, doi = {10.1128/am.16.8.1261-1262.1968}, url = {https://pubmed.ncbi.nlm.nih.gov/4877501/}, note = {Source identifier: 4877501} }