Essential science indicators

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About this resource

Essential Science Indicators (ESI) is a resource that enables researchers to conduct ongoing, quantitative analyses of research performance and track trends in science. Covering a multidisciplinary selection of 11,000+ journals from around the world, this in-depth analytical tool offers data for ranking scientists, institutions, countries, and journals. This unique and comprehensive compilation of science performance statistics and science trends data is based on journal article publication counts and citation data from Thomson Scientific databases. Available as a ten-year rolling file, ESI covers 10 million articles in 22 specific fields of research, and is updated every two months. There are also links to Web of Science¿¿ where more detailed information on papers can be found. -- Thomson products information page.

• Data Format: Online electronic index.
  
• Frequency of updates: Bimonthly
  

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