A Constitution for Europe
by Peter Bernholz 2004
European Constitutional Group

A liberal view on a European Constitution
by Angelo Petroni
Centro Einaudi

Competitive Federalism: the Case of the European Union
by Norman Barry 2001
Centre for the New Europe

A federal European Constitution for an enlarged European Union: Insights from Constitutional Economics
by Friedrich Schneider 2001
Open Republic Institute

A View from New Europe
by Hynek Fajmon 2003
The Bruges Group

Europe's New Political Geography
by Charles Grant 2004
Center for European Reform