1. S. Suresh and R.O. Ritchie, (1984), “Propagation of short fatigue cracks”, International Metals Reviews, vol 29, 445–476.
2. S. Suresh, (1991), “Fatigue of Materials”, Cambridge University Press
3. H. Kitagawa and S. Takahashi, (1976), “Applicability of fracture mechanics to very small cracks or the cracks in the early stage”, in Proc. 2nd Int Conf. Mech. Behaviour of Materials, Boston, 627–631.
4. K.J. Miller, (1993), “The two threshold of fatigue behaviour”, Fatigue Fract. Engng. Mater. Struc., vol 16, 931–939.
5. EGF1, MEP;MW Brown,1986