%support-source-elements; Support Source Elements

Elements that may be mixed with text inside the <support-source> element
Declaration
<!ENTITY % support-source-elements
                        "%simple-text; | %institution-wrap.class;"   >
Expanded Declaration

| bold | fixed-case |italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | alternatives | inline-graphic | inline-media | chem-struct | inline-formula | abbrev | index-term | index-term-range-end | named-content | styled-content | sub | sup | institution | institution-wrap