Add DOIs to Article Reference Lists
As a requirement of CrossRef membership, journal publishers are required to add DOI links (when available) to the reference list for their journal articles.
References to journal articles which may have a DOI available in the CrossRef registry can be retrieved using CrossRef’s free DOI lookup tool. A batch DOI Lookup Tool is also available called Simple Text Query.
You can can enter whole bibliographies with citations in almost any bibliographic format and receive back the matching Digital Object Identifiers (DOIs) for these references to insert into your final bibliography.