Pogarsky, S. A., and A. V. Poznyakov. “Quasi-Fractal Axial-Symmetric Structure Feeded by Segment of Nongrounded Coplanar Line”. Visnyk of V.N. Karazin Kharkiv National University, Series “Radio Physics and Electronics”, no. 29, Dec. 2018, pp. 64-71, doi:10.26565/2311-0872-2018-29-09.