@inproceedings{GiovannucciEtAlAAMAS2007,
  author =        {Andrea Giovannucci and Juan A.~Rodr\'\i guez-Aguilar and Jes\'us Cerquides and Ulle Endriss},
  title =         {Winner Determination for Mixed Multi-unit Combinatorial Auctions via Petri Nets},
  booktitle =     {Proceedings of the 6th International Joint Conference on Autonomous Agents and Multiagent Systems (AAMAS-2007)},
  publisher =     {ACM Press},
  month =         {May},
  year =          {2007}
}