1. E. C. Titchmarsh, Introduction to the Theory of Fourier Integrals (Clarendon, Oxford, 1948).
2. F. D. Gakhov and Yu. I. Cherskii, Equations of Convolution Type (Nauka, Moscow, 1978) [in Russian].
3. A. D. Polyanin and A. V. Manzhirov, Integral Equations Reference Book (Fizmatlit, Moscow, 2003) [in Russian].
4. V. G. Antipov, ‘‘Singular integral equation with sum kernel,’’ Izv. Vyssh. Uchebn. Zaved., Mat., No. 6, 9–13 (1959).
5. V. A. Kakichev and V. S. Rogozhin, ‘‘A generalization of the Chandrasekhar equation,’’ Differ. Uravn. 2, 1264–1270 (1966).