@inproceedings{HT-2007-VelartS,
	author        = "Zdenek Velart and Petr Saloun",
	booktitle     = "{Proceedings of the 18th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/1286240.1286281",
	isbn          = "978-1-59593-820-6",
	pages         = "151--152",
	publisher     = "{ACM}",
	title         = "{Ontology based course navigation}",
	year          = 2007,
}