1. Crank J, Park GS (eds) (1968) Diffusion in Polymers, Academic Press, London
2. Bueche F (1962) Physical Properties of Polymers, Interscience, New York, Chap 4
3. Fujita H (1961) Fortschr Hochpolym-Forsch 3:1
4. Kumins CA, Kwei TK (1968) in Ref 1
5. Bailey RT, North AM, Pethrick RA (1981) Molecular Motion in High Polymers, Clarendon, Oxford, Chap 10