1. Ferry, J. D., ?Viscoelastic Properties of Polymers?, Wiley, 3rd ed. (1980).
2. Meissner, J., Pure & Appl. Chem.42, 553 (1975).
3. de Vargas, L., Ph. D. Thesis, Univ. of Wisconsin-Madison, 1979.
4. Neubert, H. K. P., ?Instrument Transducers?, Clarendon Press (Oxford 1963).
5. Han, C. D., A.I.Ch.E.J.18, 116 (1972).