Implementation of United Nations Human Rights Law by German Courts, 46 GYIL 2003 (2004), pp. 87-122
The Constitutional Role of Multilateral Treaty Systems, in: Armin von Bogdandy/J. Bast (eds.), Principles of European Constitutional Law, 2006, pp. 145-181
Personal Rights and the Prohibition of Discrimination, in: Dirk Ehlers (ed.), European Fundamental Rights and Freedoms, 2007, § 3, pp. 67-96
“Armed Activities on the Territory of the Congo Cases”, in: Anne Peters/Rüdiger Wolfrum (eds), Max Planck Encyclopedia of Public International Law, online at http://www.mpepil.com/ since September 2008, update March 2013
“Mavrommatis Concession Cases”, in: Anne Peters/Rüdiger Wolfrum (eds), Max Planck Encyclopedia of Public International Law, online at http://www.mpepil.com/ since September 2008, last update April 2021
“Norwegian Shipowners’ Claims Arbitration”, in: Anne Peters/Rüdiger Wolfrum (eds), Max Planck Encyclopedia of Public International Law, online at http://www.mpepil.com/ since September 2008
International Regulation by International Regulatory Organisations – A model for ICANN?, in: The Global Community: Yearbook of International Law and Jurisprudence 2008 (2009), vol. I, pp.113-123
The Constitutional Role of Public International Law, in: Armin von Bogdandy/J. Bast (eds.), Principles of European Constitutional Law, 2nd ed. 2010, pp. 131-167
Serious Human Rights Violations as Potential Exceptions to Immunity: Conceptual Challenges, in: Anne Peters, Evelyne Lagrange, Stefan Oeter and Christian Tomuschat (eds.), Immunities in the Age of Global Constitutionalism, 2014, pp. 236-243; you find a preprint here
Public Watchdogs and Democratic Society: The Role of the Media and of the Strasbourg Court, in: Katja S. Ziegler, Elisabeth Wicks and Loveday Hodson (eds.), The UK and European Human Rights - A Strained Relationship?, 2015, pp. 441-452
Borders and ethnic divides, in: Société française pour le droit international (ed.), Droit des frontières internationales. The law of international borders, 2016, pp. 261-272
Immunities before International Criminal Courts, in: Barłomiej Krzan (ed.), Prosecuting International Crimes: A Multidisciplinary Approach, 2016, pp. 70-80; you will find a preprint here
European Directorate for the Quality of Medicines and Healthcare (EDQM), in: Stefanie Schmahl and Marten Breuer (eds.), The Council of Europe. Its Law and Policies, 2017, pp. 394-406
Convention on Human Rights and Biomedicine, ibid., pp. 572-588
Media and Information Society, ibid., pp. 708-731
Religion and International Law: Living Together, Brill Nijhoff, Leiden, 2018 (edited together with Evelyne Lagrange and Stefan Oeter)
Cultural Heritage and International Law: Objects, Means and Ends of International Protection, Springer International Publishing, Basel, 2018 (edited together with Evelyne Lagrange and Stefan Oeter)
Introduction: Cultural Heritage Law and the Quest for Human Identities, in: Evelyne Lagrange, Stefan Oeter and Robert Uerpmann-Wittzack (eds.), Cultural Heritage and International Law: Objects, Means and Ends of International Protection. Springer International Publishing, Basel, 2018, pp. 1-11