1. Analysis of marine transportation risks of China’s oil imports;Wu;China Energy,2009
2. Statistical Review of World Energy 2014http://www.bp.com/statisticalreview
3. Security of Energy Supply in Europ: Continuous Adaptationhttp://ec.europa.eu/energy/publications/doc/20110601_the_european_files_en.pdf
4. Long-Term Energy Security Risks for Europe: A Sector-Specific Approachhttp://www.ceps.eu/book/long-term-energy-security-risks-europe-sector-specific-approach
5. Conceptualising energy security and making explicit its polysemic nature