@techreport{Benz04b,
	title = {User models and Ontologies},
	address = {Freiburg, Germany},
	author = {Dominik Benz},
	institution = {University of Freiburg},
	month = {August},
	year = {2004},
	biburl = {http://www.bibsonomy.org/bibtex/22841725013ad4f7026fcc1f6920e3da8/dbenz_test},
	keywords = {freiburg ontology recommender_systems seminar ss_04 uni_freiburg user_models }
}