1. Ferry, J. D., Viscoelastic Properties of Polymers, 2nd edn, 1970, John Wiley and Sons, New York.
2. Myers, R. R. and Schultz, R. K., Official Dig. Fed. Soc. Paint Technol, 1962, 34, 801.
3. Miller, J. C. and Myers, R. R., Trans. Soc. Rheol, 1959, 2, 77.
4. Kutz, D. H., Senior Thesis, Lehigh Univ., Bethlehem, PA, USA, 1959.
5. Neilson, L. E., Rev. Sci. Instr., 1951, 22, 690.