@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}
}
@conference {DBLP:conf/edbt/SkiadopoulosGVSK04,
	title = {Computing and Handling Cardinal Direction Information},
	booktitle = {Advances in Database Technology - EDBT 2004, 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004, Proceedings},
	year = {2004},
	pages = {329{\textendash}347},
	doi = {10.1007/978-3-540-24741-8_20},
	url = {https://doi.org/10.1007/978-3-540-24741-8_20},
	author = {Spiros Skiadopoulos and Christos Giannoukos and Panos Vassiliadis and Timos K. Sellis and Manolis Koubarakis}
}
@conference {DBLP:conf/dawak/ManiatisVSV03,
	title = {CPM: A Cube Presentation Model for OLAP},
	booktitle = {Data Warehousing and Knowledge Discovery, 5th International Conference, DaWaK 2003, Prague, Czech Republic, September 3-5,2003, Proceedings},
	year = {2003},
	pages = {4{\textendash}13},
	doi = {10.1007/978-3-540-45228-7_2},
	url = {https://doi.org/10.1007/978-3-540-45228-7_2},
	author = {Andreas S. Maniatis and Panos Vassiliadis and Spiros Skiadopoulos and Yannis Vassiliou}
}
@conference {DBLP:conf/dolap/VassiliadisSS02,
	title = {Conceptual modeling for ETL processes},
	booktitle = {DOLAP 2002, ACM Fifth International Workshop on Data Warehousing and OLAP, November 8, 2002, McLean, VA, USA, Proceedings},
	year = {2002},
	pages = {14{\textendash}21},
	doi = {10.1145/583890.583893},
	url = {https://doi.org/10.1145/583890.583893},
	author = {Panos Vassiliadis and Alkis Simitsis and Spiros Skiadopoulos}
}
