94/391/EC: Council Decision of 27 June 1994 approving the Exchange of Letters between the European Community and the Republic of Bulgaria amending the Interim Agreement on trade and trade-related matters between the European Economic Community and the European Coal and Steel Community, of the one part, and the Republic of Bulgaria, of the other part, and the Europe Agreement establishing an association between the European Communities and their Member States, of the one part, and the Republic of Bulgaria, of the other part, both as amended by the Additional Protocol signed on 21 December 1993