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Markowitz, V.M.: Safe referential integrity and null constraint structures in relational databases (1994)
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Li, X.; Schijvenaars, B.J.A.; Rijke, M.de: Investigating queries and search failures in academic search (2017)
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Ziegler, G.M.: Darf ich Zahlen? : Geschichten aus der Mathematik (2010)
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Efron, M.: Eigenvalue-based model selection during Latent Semantic Indexing (2005)
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Jochum, U.: ¬Das Mediendesaster : Wie der Computer das Buch verdrängt und zum riskanten Totalmedium wird (2008)
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