@article {DBLP:journals/tkde/SkiadopoulosGSVSK05,
	title = {Computing and Managing Cardinal Direction Relations},
	journal = {IEEE Trans. Knowl. Data Eng.},
	volume = {17},
	number = {12},
	year = {2005},
	pages = {1610{\textendash}1623},
	doi = {10.1109/TKDE.2005.192},
	url = {https://doi.org/10.1109/TKDE.2005.192},
	author = {Spiros Skiadopoulos and Christos Giannoukos and Nikos Sarkas and Panos Vassiliadis and Timos K. Sellis and Manolis Koubarakis}
}
