Christ-Hazelhof, E. and Nugteren, D.H. (1979). „Purification and characterisation of prostaglandin endoperoxide Δ-isomerase, a cytoplasmic, glutathione-requiring enzyme”. Biochim. Biophys. Acta572: 43-51. PMID32914.
Shimizu, T., Yamamoto, S. and Hayaishi, O. (1979). „Purification and properties of prostaglandin D synthetase from rat brain”. J. Biol. Chem.254: 5222-5228. PMID109431.