xlink:simple

<xlink:simple 
  xmlns:xlink="http://www.w3.org/XML/XLink/0.9"
  href="footnote7.xml">
  <FOOTNOTE>7</FOOTNOTE>
</xlink:simple>

<xlink:simple 
  xmlns:xlink="http://www.w3.org/XML/XLink/0.9"
  href="http://www.interport.net/~beand/">
  <COMPOSER>Beth Anderson</COMPOSER>
</xlink:simple>

<IMAGE>
  <xlink:simple 
    xmlns:xlink="http://www.w3.org/XML/XLink/0.9"
    href="logo.gif"/>
</IMAGE>

If used in a valid document, xlink:simple must be declared

<!ELEMENT xlink:simple ANY>
<!ATTLIST xlink:simple 
 xmlns:xlink CDATA #FIXED "http://www.w3.org/XML/XLink/0.9"
  href       CDATA #REQUIRED 
>