1. The Global Wireless M2M Market, Berg Insights (2009)
2. Global Status Report on Road Safety, WHO (2009) ISBN 978-92-4-156384-0
3. OECD environmental outlook to 2030 (2008) ISBN 978-92-64-04048-9
4. Jacobsson, M., Niemegeers, I., Heemstra, S.: Personal Networks: Wireless Networking for Personal Devices. John Wiley & Sons, Chichester (2010)
5. Dietz, U. (ed): CoCar Feasibility Study: Technology, Business and Dissemination, CoCar Consortium, Public Report (2009)