Institute for Science Information(ISI) is located in Philadelphia, Pennsylvania and is
unique among the world’s leading information services for indexing all cited references
as well as complete bibliographic information on all items published in a journal - not
just articles and reviews but letters, editorials, errata and retractions, book reviews, and
other items. ISI’s consolidated database fort the Science Citation Index(SCI), Social
Sciences Citation Index, and Arts & Humanities Citation Index includes over 18,000,000
source items published from 1945 until today in thousands of journals, and more than
217,000,000 cited references.
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