@inproceedings{ijcai2009p123,
  title     = {Euclidean and Mereological Qualitative Spaces: A Study of SCC and DCC},
  author    = {Borgo, Stefano},
  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     = {708--712},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/123},
}