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- author's%3a%22Liu%2c S.%22 2
- authors%3a%22Liu%2c S.%22 2
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Lee, J.H.; Kim, M.H.: Ranking documents in thesaurus-based Boolean retrieval systems (1994)
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- Information processing and management. 30(1994) no.1, S.79-91
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Lee, J.H.; Kim, M.H.; Lee, Y.J.: Information retrieval based on conceptual distance in is-a hierarchies (1993)
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- Journal of documentation. 49(1993) no.2, S.188-207