1. N. Aronszajn, K. T. Smith Theory of Bessel potentials. Part I., Ann. Inst. Fourier, 11(1961), pp. 385?475.
2. E. T. Copson,On the problem of the electrified disk, Proc. Edinburgh Math. Soc., 8(1947), pp. 14?19.
3. A. Erdelyi, W. Magnus, F. Oberhettinger, F. G. Tricomi,Tables of integral transforms. Volume 2, Mac-Graw Hill, 1954.
4. G. I. Eskin,Boundary value problems for elliptic pseudodifferential operators, AMS, 1981.
5. V. I. Fabrikant Applications of potential theory in mechanics: a selection of new results, Kluwer Academic Publishers, 1989.