decis common accord level head state govern govern member state euro currenc octob appoint presid european central bank ec head state govern member state european commun euro currenc regard treati establish european commun articl articl thereof articl protocol statut european system central bank european central bank regard recommend council regard opinion european parliament regard opinion govern council european central bank mr wim duisenberg presid european central bank announc letter date januari secretari gener council european union intend step presid bank juli letter date april presid european council mr wim duisenberg agre remain function date successor appoint decid articl mr jean claud trichet appoint presid european central bank term offic year novemb mr wim duisenberg resign accept take effect dai articl decis publish offici journal european union brussel octob presid berlusconi oj opinion septemb publish offici journal oj