http://monet.nag.co.uk/xq2xml/
http://www.w3.org/2005/qt-applets/xqueryApplet.html
http://www.saxonica.com
http://www.research.ibm.com/XML/CompilingXSLT2toXQuery-Fokoue-WWW2005.pdf
http://www.nag.co.uk