Salton, Gerard
Introduction to modern information retrieval
McGraw-Hill, 1983
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Chowdhury, G.G.
Introduction to modern information retrieval
Facet Publishing , 2004, 2006
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Chowdhury, G.G.
Introduction to modern information retrieval
Library Association Publishing, 1999
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Information systems compatibility
edited by Simon M. Newman
Spartan , 1965
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Lancaster, F. Wilfrid
Information retrieval systems
John Wiley & Sons, 1979
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