Elements that can be included along with data characters inside the content model of the <xref> element
<!ENTITY % xref-elements "| %emphasis.class;| %inline-display.class; | %just-base-display-noalt.class; | %phrase-content.class; | %subsup.class;" >
| bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end| alternatives | inline-graphic | private-char | graphic | media | named-content | styled-content | sub | sup
bookcustom-mixes3.ent