@inproceedings{ijcai2013p149,
  title     = {StarVars - Effective Reasoning about Relative Directions},
  author    = {Lee, Jae Hee and Renz, Jochen and Wolter, Diedrich},
  booktitle = {Proceedings of the Twenty-Third International Joint Conference on
               Artificial Intelligence, {IJCAI-13}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Francesca Rossi},
  pages     = {976--981},
  year      = {2013},
  month     = {8},
  url       = {https://ijcai.org/proceedings/2013/149},
}