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Version 4.0 of the Blackwell Publishing Group (BPG) DTD has been developed… To implement XML markup throughout Blackwell Publishing Group content. This allows us to take full advantage of all the new XML technologies such as XSL, and to allow us to integrate other XML ‘vocabularies’ such as full MathML into our documents To allow a greater variety of content to be tagged in the BPG DTD (e.g.
