@inproceedings{conf/icdt/KostylevRV14,
  title = "Containment of data graph queries",
  author = "Egor V. Kostylev and Juan L. Reutter and Domagoj Vrgoc",
  year = "2014",
  booktitle = "Proceedings of the 17th International Conference on Database Theory (ICDT 2014), Athens, Greece, March 24-28, 2014",
  pages = "131--142",
  publisher = "OpenProceedings.org",
}