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Hjerppe, R.: ¬An outline of bibliometrics and citation analysis (1980)
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Nicholls, P.T.: Empirical validation of Lotka's law (1986)
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Fiala, J.: Information flood : fiction and reality (1987)
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Henzler, R.: Bibliometrische Methoden der Termanalyse (1980)
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Vasiljev, A.: ¬The law of requisite variety as applied to subject indexing and retrieval (1989)
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Davies, R.: Q-analysis : a methodology for librarianship and information science (1985)
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