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Journal Coverage

Article counts and citation data for Essential Science Indicators are derived from 11,855 journals indexed in Web of Science (Science Citation Index Expanded and Social Sciences Citation Index only) over a 10-year period.

Each journal is assigned to one of 22 research fields. In ESI, a journal can be assigned to only one field. The Multidisciplinary field contains journals such as Science and Nature, and this categorization should be taken into account when analyzing the field ranking of an individual scientist, institution, or country/territory.

Journal List

The master journal list comprises 11,855 journals covered for Essential Science Indicators up to June 30, 2013, which is the third bimonthly period of 2013. Journals are listed alphabetically within each of the 22 fields covered by the database. Where available, journal ISSN's have been supplied.

Part of the bimonthly updates to the product include updating The journal list is updated bimonthly.