1. R. Denys, Provisional definitive statement on the significance of over and undermatching weld metal strength, IIW Document X-1222-91, Annual IIW Assembly, The Hague (1991).
2. PD 6493: 1980, Guidance on some methods for the derivation of acceptance levels for defects in fusion welded joints, British Standards Institution (1980).
3. I. Milne, R.A., Ainsworth, A.R. Dowling and A.T. Stewart, R6-Rev. 3, Assessment of the integrity of structures containing defects, General Electricity Generating Board (1986).
4. R.M. Denys, in The Fracture Mechanics of Welds, J.G. Blauel and K.-H. Schwalbe (eds.) Mechanical Engineering Publications, Bury St. Edmunds (1987).
5. B. Lian, R.M. Denys and L. van de Walle, An experimental assessment of the effect of weld metal yield strength overmatching in pipeline girth welds, presented at the 3rd International Conference on Welding and Performance of Pipelines, 18th?20th November 1986, London, U.K.