1. Fatigue: A complex subject—Some simple approximations
2. [3]S. S. Manson 'Cyclic Life of Ductile Materials, Part 19 ', Thermal Stresses in Design, July, 1960 , pp.139 -144 .
3. [4]Fatigue Design Handbook (A Guide for Product Design and Development Engineers) , SAE, Vol. 4.