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- author's%3a%22Piontek%2c S.%22 2
- authors%3a%22Piontek%2c S.%22 2
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Ekmekcioglu, F.C.; Willett, P.: Effectiveness of stemming for Turkish text retrieval (2000)
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- Program. 34(2000) no.2, S.195-200
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Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992)
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- Journal of information science. 18(1992) no.2, S.139-147