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Moed, H.F.; Leeuwen, T.N. van; Reedijk, J.: ¬A new classification system to describe the ageing of scientific journals and their impact factors (1998)
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Vinkler, P.: Characterization of the impact of sets of scientific papers : the Garfield (impact) Factor (2004)
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Johan Bollen, J.; Van de Sompel, H.: Usage impact factor : the effects of sample characteristics on usage-based impact metrics (2008)
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Didegah, F.; Thelwall, M.: Determinants of research citation impact in nanoscience and nanotechnology (2013)
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García, J.A.; Rodriguez-Sánchez, R.; Fdez-Valdivia, J.: Scientific subject categories of Web of Knowledge ranked according to their multidimensional prestige of influential journals (2012)
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