1. P.J. Hogan and J.R. Jennings, UK Patent 1 546 807 (1979), assigned to ICI.
2. J.R. Jennings and P.J. Hogan, UK Patent 1 547 431 (1979), assigned to ICI.
3. J.R. Jennings, P.J. Hogan and L.F.M. Kelly, US Patent 4 138 428 (1979), assigned to ICI.
4. M.M. Baizer, Belgian Patent 631 302 (1964), assigned to Monsanto.
5. Electrolytic Reductive Coupling