1. [1] World Radiocommunication Conference 2019 (WRC-19) agenda item 1.15, ITU-R Resolution 767 (WRC-15).
2. [2] ITU-R Study Group 3 (SG3), http://www.itu.int/en/ITU-R/study-groups/rsg3/Pages/default.aspx
3. [3] Recommendation ITU-R P.676-10 (9/2013).
4. [4] Recommendation ITU-R P.838-3 (2005).
5. [5] Recommendation ITU-R P.530-16 (7/2015).