Changes made by Council Regulation (EEC) No 519/77 of 14 March 1977 laying down general rules for granting export refunds on products processed from fruit and vegetables and criteria for fixing the amount of such refunds: Regulation (EEC) No 1426/71 of the Council of 2 July 1971 laying down general rules for granting export refunds on products processed from fruit and vegetables and criteria for fixing the amount of such refunds