1. R. E. Dolby, ?Factors Controlling Weld Toughness ? the present Position, Part II ? Weld Metals? Welding Institute Research Report No. 14/1976/M (Welding Institute, London, 1976).
2. Y. Ito and M. Nakanishi, ?Study on Charpy Impact Properties of Weld Metal with Submerged Arc Welding? The Sutitomo Search, No. 15, (1976) p. 42.
3. J. G. Garland and P. R. Kirkwood, Metal Constr. (1975) 275.
4. Idem, ibid. (1975) 320.
5. E. Levine and D. C. Hill, ibid. (1977) 346.