1. H. Kitagawa, S. Takahashi, Applicability of fracture mechanics to very small crack or cracks in early stage, in: Proceedings of 2nd International Conference on Mechanical Behavior of Materials, ASM 1976 pp. 627–631.
2. Fatigue growth threshold of small cracks;Tanaka;Int. J. Fract.,1981
3. Fatigue limit of materials with small defects;Tanaka,1999
4. Fatigue tests on notched mild steel plates with measurements of fatigue cracks;Frost;J. Mech. Phy. Soilds,1957
5. Cyclic stress required to propagate edge cracks in eight materials;Frost;J. Mech. Engng Sci.,1964