year, Thomson ISI processes more than 1 million articles from 8,500
journals for the three citation databases. More than 25 million
cited references are captured from the reference lists or bibliographies
of these articles.
a cited reference is captured, it is condensed, and, to some extent,
its component parts are unified. No attempt is made to include all
of the bibliographic information that may be supplied in a reference.
Rather, the goal is to represent the cited reference by a string
of characters that, taken together, uniquely identify the cited
authors may cite the same work in different ways. For example, the
author of one article might cite a particular page number and edition
of a book, while the author of another article might cite only the
book's author and title. Other common variations include differences
in author initials, volume numbers, page numbers, and cited publication
years. In the citation database, each version of the reference will
appear as a separate reference.