@inproceedings{ijcai2016p92,
  title     = {Counting Linear Extensions of Sparse Posets},
  author    = {Kangas, Kustaa and Hankala, Teemu and Niinimäki, Teppo Mikael and Koivisto, Mikko},
  booktitle = {Proceedings of the Twenty-Fifth International Joint Conference on
               Artificial Intelligence, {IJCAI-16}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Subbarao Kambhampati},
  pages     = {603--608},
  year      = {2016},
  month     = {7},
  url       = {https://ijcai.org/proceedings/2016/92},
}