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author_ss:"Nicholas, D."
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subject_ss:"Information services"
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theme_ss:"Informationsdienstleistungen"
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Nicholas, D.: Assessing information needs : tools and techniques (1996)
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- Date
- 26. 2.2008 19:22:51
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Nicholas, D.: Assessing information needs : tools, techniques and concepts for the Internet age (2000)
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