commiss regul ec februari determin aid refer council regul ec privat storag butter cream derog articl regul ec lai detail rule applic regul ec intervent market butter cream commiss european commun regard treati establish european commun regard council regul ec common organis market milk milk product amend commiss regul ec articl thereof articl commiss regul ec amend regul ec stipul prejudic articl regul amount aid refer articl regul ec privat storag fix year end account fix daili financi cost storag movement european central bank interest rate case financi cost articl regul ec stipul period entri store place current situat butter market justifi bring entri date march butter cream storag oper forward march except measur measur provid regul accord opinion manag committe milk milk product adopt regul articl aid refer articl regul ec calcul tonn butter butter equival contract conclud basi eur fix cost eur cost cold storag dai contractu storag amount dai contractu storag calcul basi intervent price butter forc dai contractu storag begin basi annual interest rate articl articl regul ec notwithstand entri store place march articl regul enter forc dai public offici journal european union regul bind entireti directli applic member state brussel februari commiss franz fischler member commiss oj oj oj oj