1. J. H. Beynon,Mass Spectrometry and its Applications to Organic Chemistry (Elsevier, Amsterdam 1960), p. 161.
2. K. Biemann,Mass Spectrometry (McGraw-Hill, New York 1962), p. 20.
3. Ref.3, chapters 6–10.
4. S. Bergström, R. Ryhage, andE. Steniagen, Svensk. Kem. Tid.73, 566 (1961).
5. C. Djerassi, Pure appl. Chem., in press (1963).