https://qt4cg.org/pr/2760/xpath-datamodel-40/Overview.html
XQuery and XPath Data Model 4.0
xpath data modelxquery
https://www.w3.org/standards/history/xpath-datamodel-30/
XQuery and XPath Data Model 3.0 publication history | Standards | W3C
The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web...
xpath data modelxquerypublicationhistorystandards
https://qt4cg.org/pr/2941/xpath-datamodel-40/Overview.html
XQuery and XPath Data Model 4.0
xpath data modelxquery