1. Primer on Composite Materials: Analysis;Halpin,1984
2. Glass reinforced plastics—determination of loss on ignition;British Standards Institution,1977
3. Standard test method for tensile properties of fibre-resin composite;American Society for Testing of Materials,1989
4. Fibreglass composites design data;Pilkington Reinforcement Limited,1985
5. The sulcated spring;Scowen,1985