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Khoo, C.S.G.; Dai, D.; Loh, T.E.: Using statistical and contextual information to identify two- and three-character words in Chinese text (2002)
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Leydesdorff, L.; Zhou, P.: Co-word analysis using the Chinese character set (2008)
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Luhn, H.P.: Keyword-in-context index for technical literature (1985)
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