[[1] BALANIS, C. A: Antenna theory and design (Third edition), New Jersey: John Wiley & Sons, 2005, ISBN 0-471-66782-X.]Search in Google Scholar
[[2] VÁVRA, S.-TURÁN, J. : Antennas and Electromagnetic Wave Propagation (Ant´eny a ˇs´ırenie elektromagnetickch v´ln), Bratislava: Alfa, ISBN 80-05-00131-2, in Slovak.]Search in Google Scholar
[[3] SLÍŽIK, J.-HARŤANSKÝ, R. : Quality Innovation and Prosperity 17(1), 57-66, ISSN 1335-1745.]Search in Google Scholar