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author_ss:"Kristensen, J."
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language_ss:"e"
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theme_ss:"Volltextretrieval"
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year_i:[1990 TO 2000}
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Kristensen, J.; Järvelin, K.: ¬The effectiveness of a searching thesaurus in free-text searching in a full-text database (1990)
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Kristensen, J.: Expanding end-users' query statements for free text searching with a search-aid thesaurus (1993)
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