Cited-by

Cited-by shows how work has been received by the wider community; displaying the number of times it has been cited, and linking to the citing content.

Researchers cite other people’s work to acknowledge the material they used when writing their own paper. It’s useful to see which articles go on to cite the paper you’re reading, and how it may have built on or challenged its ideas.

Cited-by allows Crossref members to find out who is citing their content. Members can then display the counts and link to the citing content on their own work. Cited-by counts are publicly available, but only the member can see the details of which sources are citing their works.

Members who use this service are helping readers to:

• easily navigate to related research,
• see how the work has been received by the wider community, and
• explore how ideas evolve over time by highlighting connections between works.

Watch the introductory Cited-by animation in your language: français; español; português do Brasil; 简体中文; 日本語; 한국어; العربية; bahasa Indonesia; or in English below.

How Cited-by works

To participate in Cited-by, you need to be a member. Crossref members tell Crossref what content their papers are referencing by including that information as metadata when they register content. Users of the Cited-by service can then query that metadata to see which sources are citing their content.

Members who include references in their own metadata are able to query publications that cite their content. This allows for the display of citation counts and lists on articles so readers can see that the content they’re reading is being cited, as in this Australian Journal of Linguistics example:

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Cited-by counts complement rather than replace other services, and may differ from those of other citation databases, such as Google Scholar, Scopus, and Web of Science, which use a variety of sources for their citation data. Crossref Cited-by counts are based on the citation counts of other Crossref members participating in Cited-by.

Obligations and fees for Cited-by

• Participation in Cited-by is optional
• There is no charge for Cited-by
• You must include references when you register content, in order to be eligible for Cited-by
• You only retrieve Cited-by metadata for your own content
• Our public APIs include Cited-by counts but not the actual works.

How to participate in Cited-by

Cited-by follows a simple three-step process:

1. Members deposit references using the Content Registration service.
2. We match the metadata in the references to DOIs to establish a Cited-by relationship in the database. As new content is registered, we automatically update the relationships and notify you of new links.
3. Members and hosting platforms query relationships to retrieve Cited-by matches, and display the links on their website.

Best practice for Cited-by

• Participation in Cited-by is optional, but encouraged
• Because citations can happen at any time, Cited-by links must be kept up-to-date. Members should either check regularly for new citations or (if performing XML queries) set the alert attribute to true. This means the search will be saved in the system and you’ll get an alert when there is a new match
• Once retrieved, Cited-by counts should be included and linked on your website.

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Download the Cited-by factsheet, and explore factsheets for other Crossref services and in different languages.