1. G.Cigna, J. Appl. Polym. Sci. 14 (1970) 1781.
2. C. Maestrini, M. Merlotti, M. Vighi and E. Malaguti, Proc. of the European Polymer Federation, 1992, Baden Baden, 1992.
3. Idem.J. Mater. Sci. 27 (1992) 5994.
4. S. Anzaldi, L. Bonifaci, E. Malaguti, M. Vighi and G. P. Ravanetti, J. Mater. Sci. Lett. 33 (94) 1555.
5. P. A.Lovell, J.Mcdonald, D. E. J.Saunders, M. N.Sherratt and R. J.Young, in Toughened Plastics I, edited by C. K.Riew and A. J.Kinloch, American Chemical Society, Washington, 1993.