1. Steroids;Fieser,1959
2. Zur Stereochemie der Sterine und Gallensaeuren;Lettre;Berichte.,1935
3. Formation and metabolism of bile acids;Bergstrom,1960
4. Metabolism of bile acids in animals;Doisy,1965
5. Mechanisms of bile secretion;Brauer;J. Am. Med. Assoc.,1959