The content model for the <pub-date> element
The <pub-date> elements holds dates an article was published or released in a particular format. While the Parameter Entity %pub-date-model; defaults to the standard%date-model; in the base Suite, %pub-date-model; has been over-ridden to have different content in this Archiving Tag Set.
<!ENTITY % pub-date-model "(season?, (day?, month?)?, year?, string-date?)" >