1. O.W. Webster, W.Z. Hertier, D.Y - Sogah, W.B. Farnham & T.V. Rajanbabu, J.Am. Chem.Soc. 105, 5706 (1983)
2. D.Y. Sogah, O.W. Webster, J.Polym.Sci. Polym.Lett.Edit. 21, 927 (1983)
3. W.J. Bailey, Polymer Prepr. A.C.S. 25, 1, 210 (1984) and references therein
4. W.J. Bailey, Makromol.Chem.Suppl. (1985) in press, Polymer Chemistry Meeting, Leuven, September 1984.
5. T. Saegusa, Pure and Applied Chemistry 53 691 (1981); Proceedings of the Robert A. Welch Foundation Conferences on Synthetic Polymers, Nov.15 (1982) Houston, Texas, and references therein.