• Feb 27, 2026 Differentiated Integration Explaining Variation In The European Union The European Union Series By Leuffen Dr Dirk Rittberger Professor Berthold Schimmelfe 2012 Paperback r navigating the future challenges facing the EU and ensuring its continued stability and effectiveness The success of the EU hinges on finding sustainable mechanisms for managing diverse preferences and navigating the inherent complexities of differ By Israel Shields