@INPROCEEDINGS{cgUCL-AELMS08,
 	AUTHOR={Armknecht, Frederik and Escalante, Alberto and Loehr, Hans and Manulis, Mark and Sadeghi, Ahmad-Reza},
	TITLE={{Secure Multi-Coupons for Federated Environments: Privacy-Preserving and Customer-Friendly}},
	BOOKTITLE={4th Information Security Practice and Experience Conference (ISPEC 2008)},
	PUBLISHER={Springer},
	EDITOR={L. Chen, Y. Mu, and W. Susilo},
	SERIES={Lecture Notes in Computer Science},
	VOLUME={4991},
	PAGES={29-44},
	MONTH={4},
	YEAR={2008},
}