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Mulvany, N.C.: Back-of-the-book indexing (2009)
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Melton, J.S.: ¬A use for the techniques of structural linguistics in documentation research (1965)
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Farrow, J.: All in the mind : concept analysis in indexing (1995)
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Morse, E.; Lewis, M.; Olsen, K.A.: Testing visual information retrieval methodologies case study : comparative analysis of textual, icon, graphical, and "spring" displays (2002)
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Frants, V.I.; Voiskunskii, V.G.; Shapiro, J.: Automated information retrieval : theory and methods (1997)
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