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Robertson, M.A.: Windows 3.0 for the online searcher (1991)
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Robertson, S.E.: Theories and models in information retrieval (1977)
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Robertson, S.E.: On term selection for query expansion (1990)
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Robertson, S.E.: On relevance weight estimation and query expansion (1986)
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Aral, S.: ¬The hype machine : how social media disrupts our elections, our economy, and our health - and how we must adapt (2020)
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¬An introduction to information retrieval (o.J.)
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