1. L. Bateman, C.G. Moore, M. Porter and B. Saville, in “The Chemistry and Physics of Rubber-like Substances,” Chapter 15, L. Bateman, Ed. (Maclaren, London, 1963).
2. B. Saville and A.A. Watson, Rubber Chem. Technol, 40, 100 (1967).
3. G. Kraus and G.A. Moczvgemba, J. Polymer Sci, 2A, 277 (1964).
4. F.P. Baldwin, P. Borzel and H.S. Makowski, Rubber Chem. Technol., 42, 1167 (1969).
5. L. Bateman, J.I. Cunneen, C.G. Moore, L. Mullins and A.G. Thomas, in “The Chemistry and Physics of Rubber4ike Substances,” Chapter 19, L. Bateman, Ed. (Maclaren, London, 1963).