Changes made by 91/128/EEC: Commission Decision of 15 February 1991 relating to a proceeding under Article 85 of the EEC Treaty (IV/31.559 - Sippa) (Only the French text is authentic)
EU Decision 1991/128
No changes made by 91/128/EEC: Commission Decision of 15 February 1991 relating to a proceeding under Article 85 of the EEC Treaty (IV/31.559 - Sippa) (Only the French text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.