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Foskett, A.C.: ¬The subject approach to information (1982) 9.91

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Foskett, A.C.: ¬The subject approach to information (1996) 9.91

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Buchanan, B.: Theory of library classification (1979) 9.91

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Kumbhar, R.: Library classification trends in the 21st century (2012) 9.91

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Moreno, J.M.T.: Automatic text summarization (2014) 9.91

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