@inproceedings{ICEIS-DISI-2007-GroppeGL,
	author        = "Sven Groppe and Jinghua Groppe and Volker Linnemann",
	booktitle     = "{Proceedings of the Ninth International Conference on Enterprise Information Systems, Volume 1: DISI}",
	isbn          = "978-972-8865-88-7",
	pages         = "13--20",
	title         = "{Using an index of precomputed joins in order to speed up SPARQL processing}",
	year          = 2007,
}