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Ding, Y.: Scholarly communication and bibliometrics : Part 1: The scholarly communication model: literature review (1998)
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Nicolaisen, J.: Citation analysis (2007)
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Egghe, L.: ¬The Hirsch index and related impact measures (2010)
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Thelwall, M.; Vaughan, L.; Björneborn, L.: Webometrics (2004)
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