1. B. Gross, Mathematical Structure of the Theories of Linear Viscoelasticity, Hermann, Paris, 1953.
2. J. D. Ferry, Viscoelastic Properties of Polymers, Wiley, New York, 1970.
3. G. Harrison, The Dynamic Properties of Supercooled Liquids, Academic Press, London, 1976.
4. G. Marin and W. W. Graessley, Rheol. Acta, 1977, 16, 527.
5. G. Marin, J. J. Labaig and P. Monge, Polymer, 1975, 16, 223.