Martin, K.O., Oh, S.-W., Lee, H.J. and Monder, C. (1977). „Studies on 21-3H-labeled corticosteroids: evidence for isomerization of the ketol side chain of 11-deoxycorticosterone by a hamster liver enzyme”. Biochemistry16: 3803-3809. PMID901753.
Monder, C., Martin, K.O. and Bogumil, J. (1980). „Presence of epimerase activity in hamster liver corticosteroid side chain isomerase”. J. Biol. Chem.255: 7192-7198. PMID7391077.