@inproceedings{ijcai2009p150,
  title     = {A Fixed-Parameter Tractable Algorithm for Spatio-Temporal Calendar Management},
  author    = {Nebel, Bernhard and Renz, Jochen},
  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     = {879--883},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/150},
}