1. Harrington, R.F.: ‘Field computations by moment method’, (Macmillian New York 1968)
2. ‘Computer analysis of three-dimensional wire antennas’, Technical, 2708–4, Ohio State University Electro-Science Lab Ohio USA, 1969
3. Mittra, R., ‘Computer techniques for elecromagnetics’, (Pergamon 1973), p. 400
4. Aizenberg, G.Z., and Belousov, S.P.: ‘Short wave antennas’, et al. Radio and communications, ( Moscow 1985),in Russian