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author_ss:"Hjerppe, R."
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Hjerppe, R.: ¬An outline of bibliometrics and citation analysis (1980)
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- Citation indexing
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Hjerppe, R.: Hypostatizing data collections, especially bibliographic : Abstractions, representations, sensualizations, adaptations/personalizations, ... (1998)
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- Date
- 22. 9.1997 19:16:05