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Thelwall, M.: Results from a web impact factor crawler (2001)
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Shi, D.; Rousseau, R.; Yang, L.; Li, J.: ¬A journal's impact factor is influenced by changes in publication delays of citing journals (2017)
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Thelwall, M.: Web impact factors and search engine coverage (2000)
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Bornmann, L.: How much does the expected number of citations for a publication change if it contains the address of a specific scientific institute? : a new approach for the analysis of citation data on the institutional level based on regression models (2016)
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Lange, L.L.: ¬The impact factor as a phantom : is there a self-fulfilling prophecy effect of impact? (2002)
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