Ogata, H. & Nomura, T. (1975)
Isolation and identification of prostaglandin E2 from gastrointestinal tract of shark Triakis scyllia. Biochimica et Biophysica Acta (BBA)/Lipids and Lipid Metabolism, 388(1), 84–91
DOI: 10.1016/0005-2760(75)90064-8