1. Contingent credibility: the impact of investment treaty violations on foreign direct investment;Allee;International Organization,2011
2. Baccini, L., Thurner, P.W., 2011. Global energy governance: bilateral trade and the diffusion of international organizations. In: Proceedings of the Annual Conference of the Midwest Political Science Association. Chicago.
3. Energy Security and Climate Change Policy Interactions. An Assessment Framework;Blyth,2004
4. BMWi, 2013. Energiedaten, 〈http://www.bmwi.de/DE/Themen/Energie/Energiedaten/gesamtausgabe.html〉 (15.7.13).
5. BP, 2013. Statistical Review of World Energy, June 2013. BP, London.