Council Regulation (EEC) No 2066/92 of 30 June 1992 amending Regulation (EEC) No 805/68 on the common organization of the market in beef and veal and repealing Regulation (EEC) No 468/87 laying down general rules applying to the special premium for beef producers and Regulation (EEC) No 1357/80 introducing a system of premiums for maintaining suckler cows