Content model for the <app-group> element
<!ENTITY % app-group-model "(label?, title?, (%para-level;)*, (%app.class; | %ref-list.class;)*)" >
(label?, title?, (address | alternatives | array | boxed-text | chem-struct-wrap | fig | fig-group | graphic | media | preformat | supplementary-material | table-wrap | table-wrap-group | disp-formula | disp-formula-group | def-list | list | tex-math | mml:math | p | related-article | related-object | ack | disp-quote | speech | statement | verse-group | x)*, (app | ref-list)*)
JATS-backmatter1.ent