Marktorientiert, sicher, nachhaltig. Die G7 kann und sollte aktiv zu einer globalen Energieordnung beitragen. Internationale Politik, Juli/ August 2015 110-115 (co-authored with Kirsten Westphal).
Soft power with a hard edge: EU policy tools and energy security. Review of International Political Economy. 2015 (co-authored with Nick Sitter). DOI: 10.1080/09692290.2015.1008547
A liberal actor in a realist world? The Commission and the external dimension of the single market for energy. Journal of European Public Policy, 21 (10) 2014, 1452-1472 (co-authored with Nick Sitter).
Escaping the valley of death? Comparing shale gas technology policy prospects to nuclear and solar in Europe. Journal of World Energy Law and Business, 7 (2) 2014, 93-111 (co-authored with Mike LaBelle).
From the state to the market and back. Policy implications of changing energy paradigms. Global Policy, 3 (2) 2012, 198-210.
A Public Policy Perspective on Global Energy Security. International Studies Perspectives 12 (4), 2012, 65-84.
The uniqueness of the energy security, justice, and governance problem. Energy Policy, (41) 2012, 232–240 (co-authored with Benjamin Sovacool).
Assessing OPEC’s Performance in Global Energy. Global Policy, September 2011, pp 31-39 (co-authored with Jan Martin Witte).
Governing Global Energy: Existing Approaches and Discourses. Current Opinion in Environmental Sustainability 3 (4) 2011, 213–217
Governing global energy. Systems, transitions, complexity. Global Policy 2 (1), 2011, 75-88 (co-authored with Aleh Cherp and Jessica Jewell).
Back to the future or forward to the past? Strengthening markets and rules for effective global energy governance. International Affairs 85 (2), 2009, 373-390 (co-authored with Jan Martin Witte).
Resurgent Russia? Rethinking Energy Inc.. Policy Review (147)February/ March, 2008, 53-63.
Rhetoric versus reality. Russian threats to European energy supply. Energy Policy (36) 2008, 686-692.
Global Energy Governance. Internationale Politik (April), 2008, 46-54.
Divided over Iraq, united over Iran. A rational choice explanation to European irrationalities. European Political Economy Review (8) 2008, 39-66.