Used for any kind of internal article referencing
Reference Type Attribute. The @ref-type attribute (of the <xref> element) should be used to preserve information concerning what type of element is being pointed to by the cross-reference.
Figure and Table Callout. In this DTD, all the figures and tables are grouped at the end of the article inside the <floats-group> element. The table or figure callout function (which indicates the positioning of a table or figure within the article and is not a textual reference to the figure or table) is performed by <xref>, with the @ref-type attribute taking the value “fig-anchor” or “table-anchor”, respectively.
(#PCDATA | ext-link | related-article | inline-supplementary-material | break | bold | italic | monospace | overline | roman | sans-serif | sc | strike | underline | alternatives | inline-graphic | mml:math | fn | target | xref | sub | sup)*
Any combination of:
<addr-line>, <aff>, <alt-title>, <article-title>, <attrib>, <award-id>, <bold>, <chem-struct>, <collab>, <comment>, <contrib>, <contrib-group>, <copyright-statement>, <corresp>, <def-head>, <disp-formula>, <etal>, <ext-link>, <funding-source>, <funding-statement>, <inline-supplementary-material>, <institution>, <italic>, <kwd>, <license-p>, <mixed-citation>, <monospace>, <named-content>, <on-behalf-of>, <overline>, <p>, <preformat>, <product>, <related-article>, <role>, <roman>, <sans-serif>, <sc>, <series>, <series-text>, <series-title>, <speaker>, <strike>, <string-name>, <styled-content>, <sub>, <subject>, <subtitle>, <sup>, <supplement>, <target>, <td>, <term>, <term-head>, <th>, <title>, <trans-subtitle>, <trans-title>, <underline>, <verse-line>, <xref>
...
<p align="left">Therapist immediacy, which we defined
as disclosures within the therapy session of how the
therapist is feeling about the client, him- or herself
in relation to the client, or about the therapy relationship
(<xref ref-type="bibr" rid="c42" id="cr42-1">Hill, 2004</xref>), involves ...</p>
...
link3.ent