1. The Antenna Engineering Handbook, 4th Ed., Ed. by J. L. Volakis (McGraw Hill, New York, 2007).
2. B. A. Munk, Frequency Selective Surfaces: Theory and Design (Wiley, New York, 2000).
3. V. H. Rumsey, Frequency Independent Antennas (Academic, New York, 1966; Mir, Moscow, 1968).
4. S. A. Podosenov, A. A. Potapov, and A. A. Sokolov, Pulsed Electrodynamics of Broadband Radio Systems and Fields of Coupled Structures, Ed. by A. A. Potapov (Radiotekhnika, Moscow, 2003) [in Russian].
5. A. A. Potapov, Fractals in Radio Physics and Radars (Logos, Moscow, 2002) [in Russian].