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
The (Non) Use of Treaty Object and Purpose in Intellectual Property Disputes in the WTO, Max Planck Institute for Intellectual Property & Competition Law Research Paper No. 11-15, (September 28, 2011)
Litigating Intellectual Property Rights in Investor-State Arbitration: From Plain Packaging to Patent Revocation (July 8, 2014). Fourth Biennial Global Conference of the Society of International Economic Law (SIEL) Working Paper No. 2014-21