Leuffen, Dirk Rittberger, Berthold Schimmelfennig, Frank <br/><br/>
Differentiated integration: explaining variation in the European Union 

 - London: Palgrave Macmillan,   2013 
 - xxix, 287p. 24cm. 
 - The European Union series .
<br/><br/>References p269-281. Inclus. Index. 
<br/><br/><label>ISBN: </label>9780230246447 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>European Union<br/>European Union policy<br/>differentiated integration<br/>Euro crisis<br/>European Union integration
<br/><br/><label>Dewey Class. No.: </label>337.2094