Content model for the <front> element, which is a container element to collect metadata elements
<!ENTITY % front-model "(journal-meta?, article-meta, (%list.class; | %front.class; | %front-back.class;)* )" >
(journal-meta?, article-meta, (def-list | list | ack | bio | fn-group | glossary | notes)* )
JATS-archivearticle0.dtd