As part of a bibliographic reference, used to record the theme or special issue title for an issue of the journal
<!ELEMENT issue-title (#PCDATA %issue-title-elements;)* >
Text, numbers, or special characters, zero or more
<citation> Citation; <related-article> Related Article Information; <related-object> Related Object Information
...
<ref>
<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>Winter</season>
<year>1997</year>
</citation>
</ref>
...
common.ent