%ref-model;
Reference Item Model
Content model for the <ref> element.
Model
<!ENTITY % ref-model "(%citation.class;)+" >
Expanded Model
(citation-alternatives | element-citation | mixed-citation | nlm-citation)+
<!ENTITY % ref-model "(%citation.class;)+" >
(citation-alternatives | element-citation | mixed-citation | nlm-citation)+
Article Authoring Tag Library NISO JATS Version 1.2d2 (ANSI/NISO Z39.96-2015)
Version of June 2018