Changes made by Commission Regulation (EEC) No 1760/83 of 29 June 1983 on special detailed rules for the application of the system of advance-fixing certificates for certain agricultural products exported in the form of goods not covered by Annex II to the Treaty and derogating from Regulation (EEC) No 2730/79 with regard to payment of refunds on butter (repealed): Regulation (EEC) No 2049/75 of the Commission of 25 July 1975 on special detailed rules for the application of the system of advance fixing certificates for certain agricultural products exported in the form of goods not covered by Annex II to the Treaty