1. B. Kaiser, C. Berger, Fatigue behaviour of technical springs, Proceedings of the First Symposium on Structural Durability, Darmstadt, 2005.
2. C. M. Sonsino, Dauerfestigkeit - eine Fiktion, Konstruktion 4, 2005.
3. Eurocode 3, Design of steel constructions, Part 1, 1993.
4. FKM-Guideline Analytical strength assessment of components in mechanical engineering, 5th revision, VDMA Verlag GmbH, 2003.
5. Fatigue Fract. Engng. Mater. Struct., 22, 1999.