1. Electrical Energy Storage Systems—a Mission to the USA, DTI Global Watch Mission Report, December 2006. URN 07/506.
2. Electrochemical Energy Storage—a Mission to the USA, DTI Global Watch Mission Report, November 2004. URN 05/593.
3. Overview Report of Combined Energy Storage and Renewable Generation. DTI, 2004. URN 04/1047.
4. Proceedings of the EESAT Conference Series (Electrical Energy Storage Systems, Applications and Technologies), 1998–2007.
5. Review of Electrical Energy Storage Technologies and Systems and of their Potential for the UK. DTI 2004. URN 04/1876.