Model

<!ENTITY % disp-formula-elements
                         "| %access.class; | %address-link.class; |
                          %break.class; | %emphasis.class; |
                          %display-back-matter.class; |
                          %inline-display.class; |
                          %inline-math.class; | %label.class; |
                          %math.class; | %simple-display.class; |
                          %subsup.class;"                            >

Expanded Model

| alt-text | long-desc | email | ext-link | uri | break | bold | fixed-case |italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | attrib | permissions | alternatives | inline-graphic | inline-media | chem-struct | inline-formula | label | mml:math | code | graphic | media | preformat | sub | sup