@inproceedings{conf/www/StefanoniMK18,
  title = "Estimating the cardinality of conjunctive queries over {RDF} data using graph summarisation",
  author = "Giorgio Stefanoni and Boris Motik and Egor V. Kostylev",
  year = "2018",
  booktitle = "Proceedings of the Web Conference 2018 (TheWebConf 2018, formerly known as World Wide Web Conference, WWW), Lyon, France, April 23-27, 2018",
  pages = "1043--1052",
  publisher = "{ACM}",
}