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Citation Search Engines

Citation Search Engines

There are three major databases with indexes to find citations of a scientific paper or author.
These indexes are used as tools to assess research activity and to count the number of citations of scientific papers.


The best tools for finding the number of citations of a specific article are:



Web of Science


The Web of Science provides various options for finding citations. Once the search has been completed, information on the citations that an article has received can be found in the "Times Cited" section.


A more comprehensive search can be carried out via the "Cited Reference Search" tab, which can be used to search by cited author or paper. In addition, this option covers citations of papers that are not indexed in the Web of Science.




A Scopus search gives a list of results, including the number of citations that papers have received. Author searches give the total number of citations that an author has received for all his/her works in the Scopus database.

Google Scholar


This search engine provides data on citations of authors and their works. It searches journals, books and book chapters. The results show information on the number of citations a paper has received among the documents in its database.


In addition, we recommend a tool devised by the EC3 research group at the University of Granada.




This tool lists the most cited papers in a specialized field, as well as their authors, the papers and journals in which they were cited, and the papers cited by the authors themselves.


Searches for author citations are performed by selecting a field and clicking on the "Authors" tab. A list of the most cited authors in the field is shown by default, ranked by total number of citations. Authors can be listed according to other criteria, such as alphabetical order, citations per paper, Spanish citations or international citations.


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