Lin, Y.M. and Jarabak, J. (1978). „Isolation of two proteins with 9-ketoprostaglandin reductase and NADP-linked 15-hydroxyprostaglandin dehydrogenase activities and studies on their inhibition”. Biochem. Biophys. Res. Commun.81: 1227-1234. PMID666816.
Wermuth, B. (1981). „Purification and properties of an NADPH-dependent carbonyl reductase from human brain. Relationship to prostaglandin 9-ketoreductase and xenobiotic ketone reductase”. J. Biol. Chem.256: 1206-1213. PMID7005231.