A Comparative Analysis of Policy Space in WTO Law (November 26, 2008) Max Planck Institute for Intellectual Property, Competition & Tax Law Research Paper No. 08-02, pp.1-68
Enough is Enough – The Notion of Binding Ceilings in International Intellectual Property Protection, together with Annette Kur, (December 8, 2008). Max Planck Institute for Intellectual Property, Competition & Tax Law Research Paper No.09-01