Miscellaneous attribution or copyright elements at the end of a display element such as a <fig> or <boxed-text>
Not to be confused with the parameter entity %display-back-matter.class; which presents an OR grouping of the <attrib> and <permissions> elements; that unstructured string is used in the <preformat>element’s content model.
<!ENTITY % display-back-matter
"attrib?, permissions?" >articleauthcustom-models3.ent