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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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Bartolo, L.M.; Trimble, A.M.: Heterogeneous structures project database : vocabulary mapping within a multidisciplinary, multiinstitutional research group (2000)
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Calero Medina, C.M.; Leeuwen, T.N. van: Seed journal citation network maps : a method based on network theory (2012)
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