1. Cunningham A. L. i960 H orizons Inc. F in al R eport on U.S. N avy C ontract no. N onr-2619(00).
2. Dixon J . R . 1961 C om puted values of th e elastic stresses around a crack in an infinite p late und er tension. N .E .L . Rep. no. 12.
3. Stress concentrations due to elliptical discontinuities in plates under edge forces. California;Donnell L. H .;Inst. Tech., T. von Kdrm dn A nniv.,1941
4. VI. The phenomena of rupture and flow in solids
5. Stresses in a plate due to th e presence of cracks and sharp corners;Inglis C. E .;Trans. Inst. Nav. Arch.,1913