1. Hechter, O., Zaffaroni, A., Jacobson, R. P., Levy, H., Jeanloz, R. W., Schenker, V., Pincus, G.: The Nature and Biogenesis of the Adrenal Secretory Product. Recent Progra. Hormone Res. 6, 215 (1951).
2. Arnaudi, C.: Oxydations Microbiennes des Stéroides. Experientia (Basel) 7., 81 (1951).
3. Stadtman, T. C., Cherkes, A., Anfinsen, C. B.: Studies on the Microbiological Degradation of Cholesterol. J. Biol. Chem. 206, 511 (1951).
4. Rosenheim, O., Webster, T. A.: Precursors of Coprosterol and the Bile Acids in the Animal Organism. Nature 136, 474 (1935).
5. ——, The Mechanism of Coprosterol Formation in vivo. I. Cholestenone as an Intermediate. Biochem. J. 37, 513 (1943).