Tobias Straub, Andreas Heinemann. An anonymous bonus point system for mobile commerce based on word-of-mouth recommendation. In Hisham Haddad, Andrea Omicini, Roger L. Wainwright, Lorie M. Liebrock, editors, Proceedings of the 2004 ACM Symposium on Applied Computing (SAC), Nicosia, Cyprus, March 14-17, 2004. pages 766-773, ACM, 2004. [doi]
Abstract is missing.