German

Kohlweiss, Markulf ; Faust, Sebastian ; Fritsch, Lothar ; Gedrojc, Bartek ; Preneel, Bart (2007):
Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker.
pp. 77-94, Privacy Enhancing Technologies, 7th International Symposium, PET 2007 Ottawa, Canada, June 20-22, 2007, Revised Selected Papers, DOI: 10.1007/978-3-540-75551-7_6,
[Conference or Workshop Item]