1. Debye, P.: Lichtuck auf Kugelu von beliebigen materiab. Ibid. 57–136 (1909)
2. Weinstein, L.A.: Electromagnetic Waves. Radio & Communication, Moskow (1988) (in Russian)
3. Penkin, Yu.M., Katrich, V.A.: Excitation of Electromagnetic Waves in the Volumes with Coordinate Boundaries. Fakt, Kharkov (2003) (in Russian)
4. Mittra, R. (ed.): Computer Techniques for Electromagnetics. Pergamon Press, Oxford, New York, (1973)
5. Popovich, B.: Polynomial approximation of current along thin symmetrical cylindrical dipoles. Proc. Inst. Elec. Eng. 117, 873–878 (1970)