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%dtd-version; DTD Version

The version of this Tag Set (DTD) that was used to make the document instance under consideration.
Declaration
<!ENTITY % dtd-version
            "dtd-version
                        (3.0 | 0.4 | 1.0 | 1.1d1 | 1.1d2 | 1.1d3 | 
                         1.1 | 1.2d1 | 1.2d2 | 1.2 | 1.3d1 | 1.3d2 )
                                                          #IMPLIED"  >