R. A. D. Fiori, V. V. Kumar, D. H. Boteler, M. B. Terkildsen, article 21, "Occurrence rate and duration of space weather impacts on high-frequency radio communication used by aviation," Journal of Space Weather and Space Climate, vol. 12, 2022.

"HF Radio Systems and Circuits," pp. 467-472, 1998.

ITU-R, "Recommendation F.339-8, “Bandwidths, signal-to-noise ratios and fading allowances in HF fixed and land mobile radiocommunication systems”," pp. 1, 2013.

ITU-R, "Recommendation P.533-14, “Method for the prediction of the performance of HF circuits”," pp. 9-12, 2019.

C. A. Balanis, "Antenna Theory: Analysis and Design," Wiley, Hoboken, NJ, USA, pp. 145-214, 2016.

J. D. Kraus, R. J. Marhefka, "Antennas for All Applications," McGraw-Hill, New York, NY, USA, pp. 165-193, 2002.

"Antenna Engineering Handbook," McGraw-Hill, New York, NY, USA, pp. 4-12, 1993.

W. L. Stutzman, G. A. Thiele, "Antenna Theory and Design," Wiley, Hoboken, NJ, USA, pp. 218-270, 2012.