External module in the Archiving DTD (Green) that contains the only new element created for the Archiving DTD, the highly structured NLM citation (<nlm-citation>). This element enforces a slightly loose version of an NLM-structured bibliographic reference in which sequence of elements is enforced and interior punctuation should not be in the data because the expectation is that such punctuation will be generated.
<!ENTITY % nlmcitation.ent PUBLIC "-//NLM//DTD NLM Citation v2.3 20070202//EN" "nlmcitation.ent" >
archivecustom-modules.ent