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author_ss:"Oppenheim, C."
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language_ss:"e"
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theme_ss:"Citation indexing"
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theme_ss:"Informetrie"
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Oppenheim, C.: Do citations count? : Citation indexing and the Research Assessment Exercise (RAE) (1996)
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Johnson, B.; Oppenheim, C.: How socially connected are citers to those that they cite? (2007)
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