Changes to 83/123/EEC: Commission Decision of 23 March 1983 granting financial assistance within the framework of the special energy development programme (Only the English text is authentic)
EU Decision 1983/123
Made by 84/6/EEC: Commission Decision of 12 December 1983 amending Decision 83/123/EEC granting financial assistance within the framework of the special energy development programme (Only the English text is authentic)
From legislation.gov.uk's record of changes, the official one: see it there.