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The combination of the Science Citation Index Expanded, Social Sciences Citation Index and Arts & Humanities Citation Index.

Web of Science is the combination of the Science Citation Index Expanded, Social Sciences Citation Index and Arts & Humanities Citation Index.

Science Citation Index Expanded®

Science Citation Index Expanded is a multidisciplinary index to the journal literature of the sciences. It fully indexes 5,900 major journals across 150 scientific disciplines—that\'s 2,100 more journals than the print and CD-ROM versions of the SCI. The Science Citation Index Expanded includes all cited references captured from indexed articles.

In addition, the Science Citation Index Expanded:

• Provides access to current information and retrospective data from 1945 forward. Note that you may not have access to all data years.
• Averages 19,000 new records per week.
• Includes approximately 423,000 new cited references per week.
• As of January 1991, contains searchable, full-length, English-language author abstracts for approximately 70% of the articles in the index.

Some of the disciplines covered include:

Social Sciences Citation Index®

The Social Sciences Citation Index is a multidisciplinary index to the journal literature of the social sciences. It fully indexes more than 1,725 journals across 50 social sciences disciplines, and it indexes individually selected, relevant items from over 3,300 of the world\'s leading scientific and technical journals.

In addition, the Social Sciences Citation Index:

• Provides access to current information and retrospective data from 1956 forward. Note that you may not have access to all data years.
• Averages 2,900 new records per week.
• Includes approximately 60,000 new cited references per week.
• As of January 1992, contains searchable, full-length, English-language author abstracts for approximately 60% of the articles in the index.

Some of the disciplines covered include:

Arts & Humanities Citation Index®

Arts & Humanities Citation Index is a multidisciplinary index covering the journal literature of the arts and humanities. It fully covers 1,144 of the world\'s leading arts and humanities journals, and it indexes individually selected, relevant items from over 6,800 major science and social science journals.

In addition, the Arts & Humanities Citation Index:

• Provides access to current information and retrospective data from 1975 forward.
  Note that you may not have access to all data years.
• Averages 2,300 new records per week.
• Includes approximately 15,250 new cited references per week.
• Contains a current total of over 2.5 million records.
• Contains unique implicit citations that refer you to actual representations of a book, a work of art, a music score, or anything else.
• Contains title enhancements added to ambiguous or hard-to-categorize article titles to clarify article contents.
• As of January 2000, the Arts & Humanities Index contains searchable, full-length, English-language author abstracts.

Some of the disciplines covered include:

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