Documents & ResourcesReferences References References Constitution and Convention Final Acts of PP-18 Radio Regulations Rules of Procedure Final Acts WRC-19 Minutes of the WRC-19 Plenaries WRC-19 decisions Plenary decisions of past WRCs not reflected in the Radio Regulations W(A)RC Resolutions W(A)RC Recommendations CA/251 (Results of CPM23-1) RA-19 Summary Reports Working methods (Resolution ITU-R 1) Guidelines for the working methods Conference Preparatory Meeting (Resolution ITU-R 2) ITU Style Guides ITU Terms and Definitions Database Structure of Radiocommunication Study Groups (Resolution ITU-R 4)