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In practice, citation data can be obtained from citation databases. Citation Different citation databases do not extract citations from the same group of publications, and therefore the number of citations a publication receives will vary depending on which database is used. This should be taken into account in any comparisons. The major citation databases (Web of Science and Scopus) cover only a very small proportion of Finnish-language journals, and therefore the publications published by these journals are excluded from the analysis of these citation bases.
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