1. Van Wazer, J. R., J. W. Lyons, K. Y. Kim, andR. E. Colwell, Viscosity & Flow Measurement (New York 1963).
2. Mendelson, R. A., Melt Viscosity, Encyclopedia of Polymer Science & Technology, p. 587 (New York 1970).
3. Morrow, JoDean, Cyclic Plastic Strain Energy and Fatigue of Model, Internal Friction, Damping and Cyclic Plasticity (Philadelphia 1965).
4. Pipkin, A. C., Lectures on Viscoelastic Theory (Berlin-Heidelberg-New York 1972).
5. Maxwell, B., Polymer Eng. Sci.,7, 145 (1967).