@inproceedings{conf/pods/GottlobN06,
  title = "Data exchange: computing cores in polynomial time",
  author = "Georg Gottlob and Alan Nash",
  year = "2006",
  booktitle = "{Proceedings of the Twenty-Fifth ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems, June 26-28, 2006, Chicago, Illinois, Maryland, USA}",
  editor = "Stijn Vansummeren",
  isbn = "1-59593-318-2",
  pages = "40-49",
  publisher = "ACM",
  doi = "10.1145/1142351.1142358",
}