1. R. E. MERIDITH and C. W. TOBIAS, “II Conduction in Heterogeneous Systems,” Advances in Electrochemistry and Electrochemical Engineering, Interscience, New York. (1962) p. 15.
2. J. W. S. HEARLE, in “The Mechanics of Dense Fibre Assemblies,” The Mechanics of Flexible Fibre Assemblies, edited by J. W. S. Hearle, J. J. Thwaites and J. Amichayal (Sijthoff and Noordholf, New York, 1980) p. 51.
3. W. LU, L. A. CARLSSON and Y. ANDERSON, Tappi J. 78 (1995) 155.
4. W. LU and L. A. CARLSSON, ibid. 79 (1996) 203.
5. W. LU, L. A. CARLSSON and A. DE. RUVO, ibid. 79 (1996) 197.