◾"Direct taxation, tax treaties andinternational investment agreements: Mixed objectives, mixed results", (with Kim Brooks, Schulich School of Law, Dalhousie University) in de Mestral and Levesque (eds.) Improving International Investment Agreements: Negotiations, Substantive Obligations and Dispute Resolution, Routledge, New York, 2012.
◾"Substantive Impact of the Canadian Charter of Rights and Freedoms on Income Taxation", Kofler, G., Maduro, M.,Pistone, P. (eds.), Taxation and Human Rights in Europe and the World, IBFD Publications, Amsterdam, 2011.
◾National Report for Canada, in Lang, Pistone, Schuch and Staring (eds.) The Impact of the OECD and the UN Model Conventions on Bilateral Tax Treaties, Cambridge University Press, 2012 (with Catherine Brown, Faculty of Law, University of Calgary).
◾"Taxation and the Third Country Dimension of Free Movement of Capital in EU Law: the ECJ's rulings and the unresolved issues",  6 British Tax Review 628-666.
◾ "Some tax implications for Canadians of the EU's guarantee of free movement of capital between EU member states and third countries", forthcoming 2009, Canadian Tax Journal.
◾ "Free movement of capital, taxation and third countries: The European Court of Justice and cross-border dividends", presented at European Union Studies Association (EUSA) 10 th biennial conference, Montreal , May 17, 2007 (published on-line as proceedings of the EUSA 10 th Bienniale Conference at http://www.unc.edu/euce/eusa2007/papers/obrien-m-05a.pdf
◾ National Report for Canada in Michael Lang et al. (eds.) The EU and Third Countries: Direct Taxation, (Vienna: Linde Verlag/Kluwer Law 2007) (with Catherine Brown)
◾ "Pan-Euro-Med Diagonal Cumulation: Can it make a difference to the achievement of the goals of the European Neighbourhood Policy in the Mediterranean Region?", 2009, Vol. 2/3 Current Politics and Economics of Europe, Nova Publishers, New York.
"Company Taxation, State Aid and Fundamental Freedoms: Is the Next Step Enhanced Co-operation?" (2005) E.L.Rev. 209-233.