1. Kämpf, G., Angew. Makrom. Chem.60/61, 297 to 346 (1977).
2. Bozveliev, L. G., Plaste u. Kautschuk16, 732 (1969).
3. Popov, Tumanov, Plast. Massy (russ.)1, 39 (1972).
4. Yu, A. J., Multicomponent Polymer Systems, Adv. in Chem. Series99, 2?14 (1971).
5. Barraerd, H. A. J., J. Polym. Sci., Symp. No.49, 149?157 (1975).