We try to match the articles we find to a published article with a Crossref DOI in one of two ways: by DOI, or by title and author.
Matching by DOI is greatly preferred because it’s an exact one-to-one match.
- The article’s DOI should be in a <dc:identifier> element in the PMH record.
- The value of this element should be formatted like <dc:identifier>doi:YOUR_DOI</dc:identifier>
- There should be only one identifier element containing a DOI.
Matching by title and author is possible as a fallback.