@conference {DBLP:conf/cp/SkiadopoulosK02,
	title = {Consistency Checking for Qualitative Spatial Reasoning with Cardinal Directions},
	booktitle = {Principles and Practice of Constraint Programming - CP 2002, 8th International Conference, CP 2002, Ithaca, NY, USA, September 9-13, 2002, Proceedings},
	year = {2002},
	pages = {341{\textendash}355},
	doi = {10.1007/3-540-46135-3_23},
	url = {https://doi.org/10.1007/3-540-46135-3_23},
	author = {Spiros Skiadopoulos and Manolis Koubarakis}
}
