"The Convention on the Prevention and Punishment of Crimes against Internationally Protected Persons, including Diplomatic Agents", 23 International and Comparative Law Quarterly (1974)
"The European Convention on the Suppression of Terrorism", 1 Yearbook of European Law (1981)
"The Legal Status of Berlin" (1987, with I. D. Hendry)
"Participation of Former Yugoslav States in the United Nations and in Multilateral Treaties", 1 Max Planck Yearbook of United Nations Law (1997)
"The Interpretation of Security Council Resolutions", 2 Max Planck Yearbook of United Nations Law (1998)
"International Seabed Authority: the First Four Years", 3 Max Planck Yearbook of United Nations Law (1999)
"Northern and Western European Maritime Boundaries", in: Colson/Smith, International Maritime Boundaries, Vol. V (2005)
"Towards New Circumstances in which the Use of Force may be Authorized? The Cases of Humanitarian Intervention, Counter-terrorism, and Weapons of Mass Destruction", in: The Security Council and the Use of Force: Theory and Reality - A Need for Change? (eds. N. Blokker/N. Schrijver, 2005)
"The United Kingdom's Acceptance of the Compulsory Jurisdiction of the International Court of Justice", in: Festskrift til Carl August Fleischer (eds. O Fauchald/H Jakhelln/A Syse, 2006)
"Nécessité et légitime défense dans la lutte contre le terrorisme: quelle est la pertinence de l'affaire de la Caroline aujourd'hui?", in: La nécessité en droit international Société française pour le droit international, Colloque de Grenoble, 2006
"The International Tribunal for the Law of the Sea and General International Law", 22 International Journal of Marine and Coastal Law (2007)
"The Selection of Candidates for International Judicial Office: Recent Practice", in: Law of the Sea, Environmental Law and Settlement of Disputes: Liber Amicorum Judge Thomas A. Mensah (eds. T M Ndiaye/R Wolfrum, 2007)
Three lectures on "The UN Security Council and International Law" (2006), available on the website of the Lauterpacht Centre for Intenrational Law, University of Cambridge. An expanded version of these lectures will be published in due course by Cambridge University Press as a book within the Hersch Lauterpacht Memorial Lectures series
"The Law on the Use of Force: Current Challenges", 11 Singapore Yearbook of International Law (2007)
"The Security Council and International Criminal Law", 5 Romanian Journal of International Law/Revista Română de Drept International (2007)
"The International Seabed Authority: Fifth to Twelfth Sessions (1999-2006)", 11 Max Planck Yearbook of United Nations Law (2007)
"The General Assembly and the International Law Commission: What Happens to the Commission's Work and Why?", in: I Buffard, J Crawford, A Pellet, S Wittich (eds.), International Law Between Universalism and Fragmentation. Festschrift in Honour of Gerhard Hafner (2008)
"The Principle of Non-Intervention" (with Maziar Jamnejad), 29 Leiden Journal of International Law (2009)
"Detention during International Military Operations: Article 103 of the Charter and the Al-Jedda case", 47 Revue de Droit Militaire et de Droit de la Guerre/The Military Law and the Law of War Review (2009)
" 'Constitutionalization' of International Law: A Sceptical Voice", in: K H Kaikabad, M Bohlinder (eds.), International Law and Power. Perspectives on Legal Order and Justice. Essays in Honour of Colin Warbrick (2009)
Halsbury's Laws of England, 5th ed.,'International Relations Law' (contributor), Vol. 61 (2010)
Entries in R Wolfrum (ed.), Max Planck "Encyclopedia of Public International Law" (online edition 2008), including:
- Committee of Legal Advisers on Public International Law (CAHDI)
- International Courts and Tribunals, Discontinuance of Cases
- Final Act
- International Seabed Authority
- Legal Advisers
- Macedonia
- Peace, Breach of
- State Practice
- Teachings of the Most Highly Qualified Publicists
- United Nations Administrative Tribunal, Applications for Review (Advisory Opinions)
- United Nations Charter, Enemy State Clauses
- United Nations Security Council
- Use of Force, Prohibition of Threat