Linking to the Appropriate Copy: Report of a DOI-Based Prototype - Appendix B: Obtaining Metadata from CrossRef
Two formats of input were allowed: OpenURL, and a query format developed specifically for CrossRef.
CrossRef query format input:
For test purposes, the DOI (10.1006/jmbi.2000.4282) can be entered into the form available when logging in as a guest at http://query-test.crossref.org/query/xref.cgi
In either case, an XML metadata record would be returned in response:
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