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- author's%3a%22Wirtz%2c H.-c.%22 2
- authors%3a%22Wirtz%2c H.-c.%22 2
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Weichert, M.: "Gibt es auch Wahnsinn" : Benutzeruntersuchungen an einem Hamburger WebOPAC (2002)
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- Bibliothek: Forschung und Praxis. 26(2002) H.2, S.142-149
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Chen, H.-M.; Cooper, M.D.: Stochastic modeling of usage patterns in a Web-based information system (2002)
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