@inproceedings{ijcai2005p166,
  title     = {Declarative and Computational Properties of Logic Programs with Aggregates},
  author    = {Calimeri, Francesco and Faber, Wolfgang and Leone, Nicola and Perri, Simona},
  booktitle = {Proceedings of the Nineteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-05}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {406--410},
  year      = {2005},
  url       = {https://ijcai.org/proceedings/2005/166},
}