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De Rosa, C.; Cantrell, J.; Cellentani, D.; Hawk, J.; Jenkins, L.; Wilson, A.: Perceptions of libraries and information resources : A Report to the OCLC Membership (2005)
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Hildebrand, M.; Ossenbruggen, J. van; Hardman, L.: ¬An analysis of search-based user interaction on the Semantic Web (2007)
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