@inproceedings{Engel2008,
 author = {Yagil Engel and David Maxwell Chickering},
 title = {Incorporating user utility into sponsored-search auctions},
 booktitle = {AAMAS '08: Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems},
 year = {2008},
 isbn = {978-0-9817381-2-X},
 pages = {1565--1568},
 location = {Estoril, Portugal},
 publisher = {International Foundation for Autonomous Agents and Multiagent Systems},
 address = {Richland, SC},
 }