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Smiraglia, R.P.: Keywords redux : an editorial (2015)
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Keen, E.M.: Some aspects of proximity searching in text retrieval systems (1992)
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Yi, M.: Information organization and retrieval using a topic maps-based ontology : results of a task-based evaluation (2008)
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Tseng, Y.-H.: Solving vocabulary problems with interactive query expansion (1998)
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Allen, B.: Knowledge organization in an information retrieval task (1990)
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