1. Y. Ando, K. Iida, K. Sakabe, and H. Tsukada, Low- and High-Cycle Fatigue Strength of A302B Steel and Its Welds, IIW, Doc. XIII-464-67.
2. Y. Ishii and K. Iida, Low- and Intermediate-Cycle Fatigue Strength of Butt Welds Containing Welding Defects, IIW, Doc. X-421-69.
3. Wiley, Power Machines and Installations [Russian translation], No. 3 (1967).
4. S. Serensen and N. Makhutov, Influence of Low-Cycle Loading on the Mechanical Resistance of Steel in the Weld Zone, IIW, Doc. X-517-69.
5. S. S. Manson, ?Fatigue, a complex subject; some simple approximations,? Experimental Mechanics, No. 2 (1965).