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Lowengrub, M., Quart. Appl. Math. 19 (1962) 119–126.
Lowengrub, M., A Two Dimensional Crack Problem, Appl. Math. Res. Group Report, unpublished, North Carolina State College, Raleigh, North Carolina (1963).
Lowengrub, M., An External Crack Problem with Asymmetrical Loading, Ibid, (1963).
Sneddon, I. N., Crack Problems in the Mathematical Theory of Elasticity, Ibid. (1961).
Sneddon, I. N., The Effect of Internal Cracks on the Distribution of Stress in Thin Elastic Strips and Cylinders, Ibid. (1963).
Welch, J. T., Numerical Treatment of an Integral Equation Arising in a Mixed Boundary Elasticity Problem, Ibid. (1964).
Magnus, W. and M. Oberhettinger, Formulas and Theorems for the Functions of Mathematical Physics, Chelsea, New York, 1954.
Lebedev, N. N. and Ia. S. Uflyand, J. Appl. Math. Mech., (translation of PMM) 22 (1958) 442–450.
Tricomi, F. G., Integral Equations, Interscience, New York, 1957.