1. Bolton, “Residual Stress Distribution in and Around Spot Welds,” Brit. Welding Jnl.,8 (2), (February 1961).
2. Campus, “Recherches, Etudes et Considérations sur les Constructions Soudées,”Sciences et Lettres, Liège, 1946.
3. Denton, and Alexander, “A New Method for the Measurement of Local Residual Stresses in Tubes,” Communication à la Conférence d’Analyse des Contraintes, Paris, April 1962.
4. Günnert, “Mätning av Svetsars Egenspänningar” (Measuring of Residual Welding Stresses), Svetsen, (2) (1952).
5. Günnert, “Residual Welding Stresses,”Almqvist and Wicksell, Stockholm, 1955.