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CWTS Leiden Ranking Traditional Edition 2021

You are looking at the 2021 release of the CWTS Leiden Ranking Traditional Edition. Click here to go to the 2025 release of the ranking. The methodology of the 2021 release is documented here.

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Time period, field, and region/country

Time period: Field: Region/country: Min. publication output:

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Type of indicators: Indicator 1: Indicator 2: Calculate impact indicators using fractional counting

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The CWTS Leiden Ranking Traditional Edition is based on bibliographic data from the Web of Science database of Clarivate, Philadelphia, PA, USA.

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