1. PD6493:1991: Guidance on methods for assessing the acceptability of flaws in fusion welded structures. British Standards Institution, London, 1991.
2. BS 7910:1999: (incorporating Amendment No.1) Guide on methods for assessing the acceptability of flaws in metallic structures. British Standards Institution, London, 2000.
3. Harrison JD, Burdekin FM, Young, JG. A proposed acceptance standard for weld defects based upon suitability for service. In: Proceedings of the Second Conference on the Significance of Defects in Welds, London, May 1968. Abington, Cambs: The Welding Institute. Paper 1, p. 65–79.
4. PD 6493: Guidance on methods for assessing the acceptability of flaws in fusion welded structures,1980
5. Burdekin FM, Dawes MG. Practical use of yielding and linear elastic fracture mechanics with particular reference to pressure vessels. Conference on Practical Applications of Fracture Mechanics to Pressure Vessel Technology, London, May 1971. Mechanical Engineering Publications.