M. Caliskan, D. Graupner, and M. Mauve. VANET '06: Proceedings of the 3rd international workshop on Vehicular ad hoc networks, page 30--39. New York, NY, USA, ACM, (2006)
N. Eude, B. Ducourthial, and M. Shawky. Proceedings of the 7th IFIP International Conference on Mobile and Wireless Communications Networks (MWCN 2005), Morocco, september, (2005)