The Link to the Subject-matter: A Glass Ceiling for Sustainable Public Contracts? (Sustainable Procurement under EU Law, 2016, Cambridge University Press)

Classification, Conflicts of Interest and Change of Contractor 10 European Procurement & Public Private Partnership Law Review 2015, with M. Andrecka

Green Procurement Guidance for the Public Sector (2014, Irish Environmental Protection Agency, co-author with RPS and Achilles)

Guidance for public authorities on public procurement of innovation (2014, PPI Platform consortium, primary author with additional contributions)

Buying Green: a Handbook on Environmental Public Procurement, (2011, 2nd ed.,  and 2014, 3rd ed. European Commission Services, co-author)

'Incomplete' procurement report fails to consider the frontline (July 2013, Guardian Professional)

PPP Health Check: Managing Partnerships During their Lifetime and Financing Sustainable PPPs (2013, IISD Geneva, co-author with Laura Turley)

Energy-efficient Public Procurement: Best Practice in Program Delivery (Clean Energy Ministerial, 2013, co-author with C. Payne and A. Weber)

Mixed offerings for sustainability in new EU Procurement Directives ((3)Public Procurement Law Review 2012)

Feasibility study on future EU support to public procurement of innovation (2011, co-author with University of Manchester, Corvers and Technopolis)

Submission in response to the Consultation on Modernisation of EU Public Procurement Policy (2011, ICLEI European Secretariat, primary author)

Financing and contracting sustainable construction: Innovative approaches (2011, preliminary report on behalf of SCI-Network working group)

Blogs on Procurement Insights (EU edition) and the OUP blog