1. M. Abramowitz and I. A. Stegun (eds.), Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, Dover, New York (1972).
2. N. Ya. Vilenkin, Special Functions and the Group Representation Theory [in Russian], Nauka, Moscow (1965).
3. O. A. Germogenova, “Reflection of a plane electromagnetic wave by two spheres,” Izv. AN SSSR, Ser. Geofizika, 4, 403–405 (1963).
4. A. N. Guz and V. T. Golovchan, Diffraction of Elastic Waves in Multiply Connected Bodies [in Russian], Naukova Dumka, Kyiv (1972).
5. A. N. Guz, V. D. Kubenko, and M. A. Cherevko, Diffraction of Elastic Waves [in Russian], Naukova Dumka, Kyiv (1978).