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Christensen, F.H.; Ingwersen, P.: Online citation analysis : a methodological approach (1996)
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Ingwersen, P.: ¬The calculation of Web impact factors (1998)
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Björneborn, L.; Ingwersen, P.: Toward a basic framework for Webometrics (2004)
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Almind, T.C.; Ingwersen, P.: Informetric analyses on the World Wide Web : methodological approaches to 'Webometrics' (1997)
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