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2. Purification and some physical and chemical properties of penicillin; with a note on the spectrographic examination of penicillin preparations;ABRAHAM E. P.;Brit. J. Exptl. Path.,1942
3. Production of penicillin;CHALLINOR S. W.;Nature,1942
4. The formation from glucose by members of the Penicillium chry 8ogenum series of a pigment, an alkali-soluble protein and penicillin-the antibacterial substance of Fleming;CLUTTERBUCK P. W.;Biochem. J.,1932
5. Notatin: an antibacterial glucose-aerodehydrogenase from Penicillium notatum Westling;COULTHARD C. E.;Nature,1942