“Radiation of a Vertical Dipole over Flat and Lossy Ground Using the Spectral Domain Approach: Comparison of Stationary Phase Method Analytical Solution With Numerical Integration Results”. Elektronika Ir Elektrotechnika, vol. 21, no. 3, June 2015, pp. 38-41, https://doi.org/10.5755/j01.eee.21.3.10268.