1. USP 2141126 (original application: 15th March 1934):
2. USP BP450856 (application: 24th January 1935).
3. The History of PVC, McLaren and Sons, Ltd., London. (1969), Chapter 6, 99-137.
4. Vinyl and Allied Polymers. Volume 2 Vinyl Chloride and Vinyl Acetate Polymers, Iliffe Books and The Plastics Institute, London. (1972), Chapter 5, 62-86.
5. and The Stabilization of Polyvinyl Chloride, Edward Arnold, London. (1963), English Edition, Chapter 4, 101-164.