Corrigendum to Commission Regulation (EC) No 495/97 of 18 March 1997 amending Regulation (EEC) No 3665/87 laying down common detailed rules for the application of the system of export refunds on agricultural products and Regulation (EEC) No 3719/88 laying down common detailed rules for the application of the system of import and export licences and advance fixing certificates for agricultural products (Official Journal of the European Communities No L 77 of 19 March 1997)