1. R. W. Peters, and P. Kuhn, Bursting Strength of Unstiffened Pressure Cylinders with Slits, NACA TN 3993, 1957.
2. E. S. Folias, Int. J. Fracture Mech., 1 (1965) 104.
3. R. B. Anderson and T. L. Sullivan, Fracture Mechanics of Through-Cracked Cylindrical Pressure Vessels, NACA TN D-3252, 1966.
4. R. W. Nichols, W. H. Irvine, A. Quirk and E. Bevitt, Proc. First Int. Conf. on Fracture, Sendai, Japan, 1673, 1966.
5. H. Kihara, K. Ikeda and H. Iwanga, Brittle Fracture Initiation of Line Pipe, Document X-371-66, Presented at Int. Inst. Welding, Delft, 1966.