All references within the texts to CCIR Recommendations, Reports, Resolutions, Opinions, Decisions
and Questions refer to the 1990 edition, unless otherwise noted ; Le., only the basic number is shown.
ITU-R PLAN-1990 history
1990ITU-R PLAN-1990 (WITHDRAWN) Plan of Volumes I to XV, XVIIth Plenary Assembly of the CCIR