@article { dolog-04h,
	title = {Reasoning and Ontologies for Personalized E-Learning in the Semantic Web},
	journal = {Educational Technology and Society Journal},
	volume = {7},
	number = {4},
	year = {2004},
	month = {oct},
	pages = {82-97},
	URL = {http://www.ifets.info/journals/7_4/10.pdf},
	author = {Nicola Henze and Peter Dolog and Wolfgang Nejdl}
}