Beitrag in Sammelwerk
            Reinhard Zimmermann, The Principles of European Contract Law: Contemporary Manifestation of the Old, and Possible Foundations for a New, European Scholarship of Private Law, in: 
Florian Faust, Gregor Thüsing (Hrsg.), Beyond Borders: Perspectives on International and Comparative Law, Symposium in Honour of Hein Kötz, Heymanns, Köln 2006, 111–147.