1. Johnson, W., Watt, W.: Structure of high modulus carbon fibres. Nature 215, 384–386 (1967)
2. Bunsell, A.R.: Fibre Reinforcements for Composite Materials, p. 90. Elsevier Science, Amsterdam (1988)
3. Feldman, D.: Polymeric Building Materials. Elsevier Applied Science, London (1989)
4. Selaad, N., Ishai, O.: Inter laminar fracture toughness and toughening of laminated composites: a review. Composites 20(5), 423–435 (1989)
5. Hollaway, L. (ed.): Polymers and Polymer Composites in Construction. Thomas Telford, London (1990)