Theme or special title for a journal issue.
<!ELEMENT issue-title (#PCDATA %issue-title-elements;)* >
(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | fixed-case | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | ruby | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | index-term | index-term-range-end | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x)*
Any combination of:
<element-citation>, <mixed-citation>, <product>, <related-article>, <related-object>
In an element-style bibliographic references (punctuation and spacing removed):
...
<ref>
<element-citation>
<person-group person-group-type="author">
<name><surname>Shneiderman</surname>
<given-names>B.</given-names></name>
</person-group>
<article-title>Designing information-abundant web
sites: issues and recommendations</article-title>
<source>Web Developers' Journal</source>
<volume>47</volume>
<issue>1</issue>
<issue-title>World Wide Web Usability</issue-title>
<fpage>100</fpage>
<lpage>120</lpage>
<page-range>100-101, 105, 107-120</page-range>
<season>Summer</season>
<year iso-8601-date="1997">1997</year>
</element-citation>
</ref>
...
In a mixed-style bibliographic references (punctuation and spacing preserved):
...
<ref>
<mixed-citation>
<person-group person-group-type="author">
<string-name><surname>Shneiderman</surname>
<given-names>B.</given-names></string-name>
</person-group>.
<article-title>Designing information-abundant web
sites: issues and recommendations</article-title>.
<source>Web Developers' Journal</source>
<year iso-8601-date="1997">1997</year> <season>Summer</season>;
<volume>47</volume>(<issue>1</issue>)
<issue-title>World Wide Web Usability</issue-title>:
<page-range>100–101, 105, 107–120</page-range>.
<fpage>100</fpage>
<lpage>120</lpage>
</mixed-citation>
</ref>
...