1. Handbook of Polyurethane Resins; Nikkan Kogyo Shimmbun: Tokyo, Japan, 1987; Chapter 1.
2. ICI Polyurethane Book; Wiley: Chichester, England, 1990; Chapter 1.
3. ACS Symposium;Comstock,1981
4. ; ; In Thermoplastic Elastomers; ; ; Eds.; Hanser: Munich, 1987; Chapter 2.