[XSLTForms] Couthures, Alain: XSLTForms. https://github.com/AlainCouthures/declarative4all/tree/master/public/direct

[Fleur] Couthures, Alain: Fleur. https://github.com/AlainCouthures/declarative4all/blob/master/build/js/fleur.js

[XQuery] Robie, Jonathan - Dyck, Michael (eds.): XQuery 3.1: An XML Query Language. W3C, 2017. http://www.w3.org/TR/xquery-31/

[XPF] Kay, Michael (ed.): XPath and XQuery functions and operators 3.1. W3C, 2017. https://www.w3.org/TR/xpath-functions-31/

[XQUF] Snelson, John - Melton, Jim (eds.): XQuery Update Facility 3.0. W3C, 2015. http://www.w3.org/TR/xquery-update-30/

[XQueryX] Melton, Jim - Spiegel, Josh (eds.): XQueryX 3.1. W3C, 2017. http://www.w3.org/TR/xquery-31/

[XF11] Boyer, John M. (ed.): XForms 1.1. W3C, 2009. https://www.w3.org/TR/2009/REC-xforms-20091020/

[XF2] Bruchez, Eric - al. (eds.): XForms 2.0. W3C, 2018. https://www.w3.org/community/xformsusers/wiki/XForms_2.0

[XFTUT] Pemberton, Steven: XForms Hands On Tutorial. 2020. https://homepages.cwi.nl/~steven/xforms/xforms-hands-on/tutorial.xhtml