1. F. D. Gakhov, Boundary Problems [in Russian], Nauka, Moscow (1977).
2. H. T. Korten, "Failure mechanics of composites," in: Failure [Russian translation], Vol. 7, Part 1, Mir, Moscow (1976), pp. 367?471.
3. M. A. Lavrent'ev and B. V. Shabat, Methods of the Theory of Functions of a Complex Variable [in Russian], Nauka, Moscow (1973).
4. B. Noble, Application of the Wiener?Hopf Method to Solve Partial Differential Equations [in Russian], IL, Moscow (1962).
5. V. Z. Parton and P. I. Perlin, Methods of Mathematical Elasticity Theory [in Russian], Nauka, Moscow (1981).