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2. Fatigue Crack Propagation in Structures with Simulated Rivet Forces;Figge;ASTM, STP No. 415,1967
3. Stress Intensity Factors for a Semi-elliptical Surface Flaw;Smith;Boeing Company, Structural Development Research Memorandum No. 17,1966
4. Stress intensity factors for a corner flaw;Liu;Engng Fracture Mech.,1972