@inproceedings{HS05a,
	address = {Montreal, Canada},
	author = {Hasan and Stiller, Burkhard},
	howpublished = {1st IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2005)},
	month = {aug},
	title = {Non-repudiation of Consumption of Mobile Internet Services with Privacy Support},
	url = {http://www.csg.uzh.ch/staff/hasan/extern/publications/NorCIS\_WiMob05.pdf},
	year = {2005}
}