%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 Draft Version 1.1d3
Version of April 2015