1. Kinloch A. J. and R. J. Young: Fracture Behavior of Polymer; Applied Science Publishers; London-New York; (1983); p. 88.
2. Ref. 9.1; p.93.
3. Schoeck, G.; Int. J. Fracture, Vol. 44 (1990); p. 1.
4. Kausch, H. H.: Polymer Fracture; Springer Press; Berlin-Heidelberg; (1987); p. 312.
5. Ref. 94; p. 365.