- https://en.wikipedia.org/wiki/XQuery
- http://www.xml.com/pub/a/2005/03/02/xquery.html – Bob DuCharme: Getting Started with XQuery
- http://shop.oreilly.com/product/0636920035589.do – O’Reilly Media book on XQuery, 2nd Edition
- https://en.wikibooks.org/wiki/XQuery
- https://www.w3.org/XML/Query/#implementations
- https://en.wikipedia.org/wiki/Saxon_XSLT – “Saxon is an XSLT and XQuery processor …“
- https://sourceforge.net/projects/saxon/files/
- https://sourceforge.net/projects/saxon/files/Saxon-HE/9.7/readme97.txt
- http://www.saxonica.com/documentation/index.html#!about/installationjava
- http://www.saxonica.com/documentation/documentation.xml
- http://www.saxonica.com/html/documentation/using-xquery/
- http://www.saxonica.com/html/documentation/using-xquery/commandline.html