1. 1) E. F. J. von Euw, R. W. Hertzberg and R.Roberts, “Delay effects in fatigue crack propagation”, ASTM STP 513, Vol.230 (1972).
2. 2) R. P. Wei and T. T. Shih, “Delay in fatigue crack growth”, International Journal of Fracture, Vol.10, No.77 (1974).
3. 3) J. Schijve, “Observations on the Prediction of Fatigue Crack Growth Propagation Under Variable-Amplitude Loading”, ASTM STP 595, Vol.78 (1976), S.Matsuoka, K.Tanaka, F.Kohzu, “The effect of specimen thickness on the retardation phenomena of fatigue crack growth following a single overload”, Transactions of the JSME, Vol.45, No.1135 (1979).
4. 4) G. J. Petrak, “Strength level effects on fatigue crack growth and retardation”, Engineering Fracture Mechanics, Vol.6, No.725 (1974).
5. 5) O. E. Wheeler, “Spectrum loading and crack growth”, Transaction of the ASME D, Vol.94, No.81 (1972).