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Bookstein, A.: Relevance (1979)
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Bookstein, A.: Fuzzy requests : an approach to weighted Boolean searches (1979)
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Bookstein, A.: Informetric distributions : I. Unified overview (1990)
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Ye, F.Y.: ¬A theoretical approach to the unification of informetric models by wave-heat equations (2011)
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Burrell, Q.L.: "Ambiguity" ans scientometric measurement : a dissenting view (2001)
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Lafouge, T.; Prime-Claverie, C.: Production and use of information : Characterization of informetric distributions using effort function and density function. Exponential informetric process (2005)
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Shan, S.: On the generalized Zipf distribution : part I (2005)
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