Changes made by Commission Regulation (EEC) No 929/87 of 31 March 1987 amending Regulation (EEC) No 2814/86 introducing a temporary derogation to Regulations (EEC) No 685/69 and (EEC) No 625/78 as regards the date of taking over of butter and skimmed-milk powder bought in by intervention agencies: Commission Regulation (EEC) No 2814/86 of 11 September 1986 introducing a temporary derogation to Regulation (EEC) No 685/69 and (EEC) No 625/78 as regards the date of taking over of butter and skimmed-milk powder bought in by intervention agencies