Armin von Bogdandy is Director at the Max Planck Institute for Comparative Public Law and International Law, Heidelberg and Professor at the Goethe-University, Frankfurt. He is President of the OECD Nuclear Energy Tribunal and was a Member of the Scientific Committee of the European Union Agency for Fundamental Rights (2008-2013). He is Partner Investigator in the Exzellenzcluster "Normative Orders", Frankfurt, and Senior Research Fellow at the PluriCourts Centre for Excellence, Oslo.Ingo Venzke is Associate Professor at the University of Amsterdam. He was a Visiting Senior Fellow at National University of Singapore, Hauser Research Scholar at New York University, Visiting Scholar at Tel Aviv University and Research Fellow at the Max-Planck-Institute in Heidelberg. He is editor of the Leiden Journal of International Law and contributes to the research cluster on the exercise of public authority, Heidelberg.