Oxford, A E Studies in the biochemistry of micro-organisms: Penicilliopsin, the colouring matter of Penicilliopsis clavariaeformis Solms-Laubach. [electronic resource] - The Biochemical journal Jun 1940 - 790-803 p. digital Publication Type: Journal Article ISSN: 0264-6021 Standard No.: 10.1042/bj0340790 doi