1. C. E. Inglis,Trans. Instn. Naval Archit., 55 (1973).
2. A. A. Griffith,Phil. Trans. A221 (1921).
3. I. N. Sneddon and M. L. Lowengrub,Crack Problem in Classical Theory of Elasticity, John Wiley and Sons, Inc., New York.
4. J. Tweed,Int. J. Engng. Sci. 8 (1970).
5. I. N. Sneddon and R. P. Srivastav,Int. J. Engng. Sci., 9 (1971).