Any (hopefully representative) reference korpora of XML-ish documents?

OASIS keeps an a interoperability corpus of ODF test documents

https://www.oasis-open.org/committees/oic/charter.php

Do you use of know of any large XML/-ish reference korpora which could be used for testing purposes? In case, you don't could you suggest where or how could one find such a thing?

lbrtchx basex-talk at mailman.uni-konstanz.de:Any (hopefully representative) reference korpora of XML-ish documents?

At the end of the Statistics in our Wiki [1], you’ll find various links to large XML documents and collections.

Hope this helps, Christian

[1] http://docs.basex.org/wiki/Statistics