1. Dedicated to the memory of Dr. Willy Leimgruber deceased, July 8, 1981
2. Horning, E. C., ed. 1955.Organic SynthesisColl, Vol. III, 174New York: John Wiley and Sons.
3. Ring Cleavage in Liquid Sulfur Dioxide. I. Cleavage of Cyclic 1,2-Diketone Monoximes