1. RL Ayres, Basics of Polyethylene Manufacture Structure and Properties, American Gas Association Distribution Conference Anaheim, C.A. (1981)
2. Chapter 19 in Handbook on Experimental Mechanics;Daniel,1987
3. Measurement Systems - Aplication and design;Doebelin,1990
4. Advanced Strenght of Materials;Hartog,1987
5. A Comparison of Three Popular Test Methods for Determining the Shear Modulus of Composite Materials;Ho;Composites Engineering, New Orleans,1993