@InProceedings{Emek2011mechanisms, author= {Yuval Emek and Ron Karidi and Moshe Tennenholtz and Aviv Zohar}, title= {{Mechanisms for Multi-Level Marketing}}, booktitle= {{Proceedings of the 12th ACM Conference on Electronic Commerce (EC), pages 209-218, San Jose, CA, USA}}, month= {}, year= {2011}, }