1. Kraus JD (1950) Antennas. McGraw-Hill Book Company, Inc, New York
2. CRC Report No. 1299;DV Rogers,1976
3. ITU Recommendation ITU-R P.838-3 (2005) Specific attenuation model for rain use in prediction methods. ITU, Geneva
4. ITU Recommendation ITU-R P.676-12 (2019) Attenuation by atmospheric gases. ITU, Geneva
5. ITU Recommendation ITU-R P.530-17 (2017) Propagation data and prediction methods required for the design of terrestrial line-of-sight systems. ITU, Geneva