Changes to 83/634/EEC: Council Decision of 12 December 1983 amending Decision 82/402/EEC adopting a research and development programme (1982 to 1985) in the raw materials sector
EU Decision 1983/634
No changes to 83/634/EEC: Council Decision of 12 December 1983 amending Decision 82/402/EEC adopting a research and development programme (1982 to 1985) in the raw materials sector are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.