Hi all, I have a quick seemingly-simple question-- where can I find a standard DTD (if such a thing exists) for content as managed by a content management (CM) tool? It doesn't seem like there's one end-all-be-all DTD repository on the web (but lots of places trying to be the one, like xml.org)... so I've just been digging around.

The scoop is that I'm writing a CM tool and want to be sure I can import and export XML in industry-standard formats... thus the need to use the same DTD as other CM tools like Interwoven, Vignette, Siteyard, etc.

thank you,