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Applies to
Digital Collection Gateway
Answer
If you are using CONTENTdm, the WorldCat.org interface is programmed to build a thumbnail URL from the Reference URL in your metadata.
If you are using a different type of repository, for example, DSpace or bepress, you can configure your server to include a thumbnail URL in the metadata and use the Gateway's thumbnail mapping feature.
dc.identifier.thumbnail is the OAI-PMH identifier that DCG uses to determine thumbnail URLs.
