Council Regulation (EEC) No 1735/91 of 13 June 1991 amending Regulation (EEC) No 358/79 as regards sparkling wines produced in the Community as defined in point 15 of Annex I to Regulation (EEC) No 822/87 and Regulation (EEC) No 4252/88 on the preparation and marketing of liqueur wines produced in the Community.