decis govern council european central bank june appoint durat mandat extern auditor european central bank ecb np govern council european central bank hereinaft refer quot govern council quot regard statut european system central bank european central bank articl thereof account european central bank hereinaft refer quot ecb quot nation central bank audit independ extern auditor recommend govern council approv council european union council european monetari institut agre recommend cooper amp lybrand extern auditor ecb mandat year escap claus year decid articl cooper amp lybrand recommend council european union extern auditor ecb articl extern auditor ecb mandat year escap claus year frankfurt main june behalf govern council ecb presid willem duisenberg