Date represented as text.
This element is typically used for dates for which months and years are not given (for example, “In apple blossom time”). While the <string-date> element may also be used for any date that is represented as a sequence of characters (i.e., “January, 2001”, “Fall 2001”, “March 11, 2001”), it is best practice, when possible, to tag the year, month, and/or day as numbers, so “January, 2001” would become:
<!ELEMENT string-date (#PCDATA %string-date-elements;)* >
(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x | day | month | season | year)*
Any combination of:
... <ref id="B12"><label>[12 Lapeyre]</label> <mixed-citation> <string-name>Rene Lapeyre du Fontclaire Carnu, IV</string-name> <article-title>Foraminifera of the Lower Hellstooth</article-title> <source>Local Paleo</source> <string-date iso-8601-date="1924">Some time before <year>1924</year></string-date> <publisher-loc>Rockville, MD</publisher-loc> </mixed-citation> </ref> ...