@article{datalogbagsemanticsviasetsemantics,
  title = {Datalog: Bag Semantics via Set Semantics},
  author = {Leopoldo Bertossi and Georg Gottlob and Reinhard Pichler},
  year = {2018},
  eprint = {1803.06445},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1803.06445v3},
}