@Techreport{surevetter2007orace, author = "York Sure-Vetter and Raul Palma and Francisco Santana and Denny Vrandecic", institution = "Universit{\"a}t Karlsruhe (TH), Universidad Politecnica di Madrid", number = "1.2.10v2", title = "Ontology repositories and content evaluation", year = "2007", }