Parameter Entities for Link Attributes

<!ENTITY % link-attributes
 "xlink:type    CDATA  #FIXED 'simple'
  xlink:role    CDATA  #IMPLIED
  xlink:title   CDATA  #IMPLIED

  xmlns:xlink CDATA #FIXED 'http://www.w3.org/XML/XLink/0.9'
  xlink:href    CDATA  #REQUIRED
  xlink:show    (new | replace | parsed) #IMPLIED 'replace'
  xlink:actuate (user | auto)            #IMPLIED 'user'"
>

<!ELEMENT COMPOSER (#PCDATA)>
<!ATTLIST COMPOSER 
  %link-attributes;
>
<!ELEMENT AUTHOR (#PCDATA)>
<!ATTLIST AUTHOR
  %link-attributes;
>
<!ELEMENT WEBSITE (#PCDATA)>
<!ATTLIST WEBSITE
  %link-attributes;
>