%0 Journal Article %T The European Union¡¯s Eastern Enlargement:a Guarantee of Security or a Security Trap? %A Helena Carrapi£¿o %J F¨¦d¨¦ralisme-R¨¦gionalisme %D 2004 %I l'Universit¨¦ de Li¨¨ge %U http://popups.ulg.ac.be/federalisme/document.php?id=220