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Schaefer, R.E.: Denken: Informationsverarbeitung, mathematische Modelle und Computersimulation (1985)
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Schaefer, B.K.: ¬The phoenix schedule 510 in Dewey 18 (1975)
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Schaefer, T.: Psychologie im Bücherschrank : kleine Typologie des Büchereinordnens (1988)
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Schaefer, M.T.: Internet information retrieval for libraries : four keys & sites that use them (1998)
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Schaefer, M.T.: Electronic description initiatives to save endangered archives (1998)
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Ruiz-Baños, R.; Bailón-Moreno, R.: Metodos para medir experimentalmente el envejecimiento de la literatura cientific (1997)
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Gödert, W.: Subject headings for mathematical literature (1980)
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Reed, D.: Essential HTML fast (1997)
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Malesios, C.: Some variations on the standard theoretical models for the h-index : a comparative analysis (2015)
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How we index : six ways to work (1996)
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