1. W. V. T. Rusch, P. D. Potter: Analysis of Reflector Antennas (Academic Press, New York, 1970), Section 2.6.
2. C.-T. Tai: Dyadic Green's Functions in Electromagnetic Theory (Intext Educational Publishers, Scranton, 1971).
3. W. V. T. Rusch, P. D. Potter: ibid., pp. 46–49.
4. P. Beckmann: The Depolarization of Electromagnetic Waves (Golem Press, Boulder, Colo., 1968), Chapter 3.
5. J. J. Bowman, T. B. A. Senior, P.L.E. Uslenghi: Electromagnetic and Acoustic Scattering by Simple Shapes (North Holland Publishing Co., Amsterdam, 1969), pp. 29–31.