1. Schurz, J., Das Papier15, 530 (1961).
2. Bueche, F., Physical Properties of Polymers, Interscience (1962).
3. Fox, T. G., S. Gratch undS. Loshaek, in:F. Eirich, Rheology, Vol. I, S. 431 (1956).
4. Vgl.Akio Teramoto undHiroshj Fujita, Makromol. Chem.85, 261 (1965);Tadao Kataoka undShigeguki Ueda, J. Polym. Sci.A3, 2947 (1965).
5. Schurz, J., Abhandl. d. Dtsch. Akad. Wiss. Berlin, 1965 (3),113.