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Some Comments on Egghe’s Derivation of the Impact Factor Distribution

By L.R. Waltman and N.J.P. van Eck


In a recent paper, Egghe [Egghe, L. (in press). Mathematical derivation of the impact factor distribution. Journal of Informetrics] provides a mathematical analysis of the rank-order distribution of journal impact factors. We point out that Egghe’s analysis relies on an unrealistic assumption, and we show that his analysis is not in agreement with empirical data.distribution;rank-order distribution;impact factor

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