C. Christakis, K. Ioannidi, S. Sautbekov, P. Frangos, and S. K. Atanov, “The Radiation Problem from a Vertical Short Dipole Antenna above Flat and Lossy Ground: Novel Formulation in the Spectral Domain with Closed – Form Analytical Solution in the High Frequency Regime”, ELEKTRON ELEKTROTECH, vol. 20, no. 9, pp. 35-38, Nov. 2014.