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Chang, R.: ¬The development of indexing technology (1993)
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Chang, R.: Keyword searching and indexing (1993)
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Chang, R.H.: To classify or not to classify? : a new look at an old problem (1989)
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Chang, S.H.: ¬The current state of Web search engines (1999)
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Ferl, T.E.; Millsap, L.: Subject cataloging : a how-to-do-it workbook (1991)
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Ruan, L.: Providing better subject access to nonprint fire emergency materials for Illinois firefighters : its history, use and future (2001)
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