Registering references means submitting reference lists as part of your metadata deposit. It is optional, but strongly encouraged. Registering references is a prerequisite for participating in Cited-by and any references you include in your Crossref metadata will be made available through our APIs, including Event Data.
- supply DOIs with your references! This is the most effective way to identify and connect the references supplied with your content metadata.
- supply a full reference or complete marked up metadata for every citation that you do not have a DOI for - we do our best to match these citations to registered DOIs.
- cite data, software, and other materials used to support and supplement the content being registered
- omit non-Crossref DOIs from your references - this eliminates data, software, and other types of citations from our records. We aren’t able to match citations to non-Crossref DOIs, but we do pass them along to our APIs and they are used by our metadata subscribers.
Review our References Markup Guide for XML and metadata help.