Kubal, S., and R. J. Zielinski. “Radiowave Propagation Over an Irregular Surface – The GO and UTD Approach”. Elektronika ir Elektrotechnika 20, no. 2 (January 28, 2014): 85-88. Accessed November 21, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/4300.