@inproceedings{ijcai2009p318,
  title     = {Lifted Aggregation in Directed First-Order Probabilistic Models},
  author    = {Kisynski, Jacek and Poole, David},
  booktitle = {Proceedings of the Twenty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-09}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Hiroaki Kitano},
  pages     = {1922--1928},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/318},
}