1. The significance of fatigue crack closure, in damage tolerance in aircraft structures;Elber;ASTM STP,1971
2. Fatigue crack closure under cyclic tension;Elber;Engng Fracture Mech.,1970
3. Stress analysis and growth of cracks;von Euw,1972
4. Metal Fatigue;Christensen,1959
5. Mechanics of crack tip deformation and extension by fatigue, in fatigue crack propagation;Rice;ASTM STP,1967