Contribution by Janis A. Emmanouilidis, Stavros Costopoulos Research Fellow at ELIAMEP, entitled Das Differenzierte Europa. Königsweg oder Sackgasse der Integration?, published in Frank Decker and Marcus Höreth (eds.), Die Verfassung Europas: Perspektiven des Integrationsprojekts. The article analyses the perspectives of differentiated integration in an EU 27+. In this context, the contribution discribes and evaluates six potential forms of more flexible cooperation within and outside the framework of the European Union.

The book includes also contributions written by Frank Decker, Philipp Genschel, Jürgen Habermas, Simon Hix, Andreas Hofmann, Marcus Höreth, Josef Isensee, Peter Graf Kielmansegg, Ludger Kühnhardt, Jerzy Macków, Dennis-Jonathan Mann, Thomas Meyer, Hans-Gert Pöttering, Michael Sonnicksen, Günter Verheugen, Bernhard Weßels, Wolfgang Wessels and Heinrich August Winkler.

Reference: Frank Decker and Marcus Höreth (eds.), Die Verfassung Europas: Perspektiven des Integrationsprojekts, VS Verlag, Wiesbaden, 2009, ISBN: 978-3-531-15969-0