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Griffiths, A.; Robinson, L.A.; Willett, P.: Hierarchic agglomerative clustering methods for automatic document classification (1984)
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- Journal of documentation. 40(1984) no.3, S.175-205
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Willett, P.: Recent trends in hierarchic document clustering : a critical review (1988)
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- Information processing and management. 24(1988) no.5, S.577-597
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Griffiths, A.; Luckhurst, H.C.; Willett, P.: Using interdocument similarity information in document retrieval systems (1986)
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- Journal of the American Society for Information Science. 37(1986) no.1, S.3-11