The official XSL Transformations (XSLT) specification. XSLT is a language derived from XSL for transforming XML documents into other XML (or HTML) documents. (W3C Recommendation 16 November 1999)
A schema language for defining the syntactic structure and partial semantics of XML document types; an alternative to XML DTDs. [W3C Note 30 July 1999]
This document proposes a structural schema facility, Document Content Description (DCD), for specifying rules covering the structure and content of XML documents. [W3C Note 31 July 1998]
Part 2 of the specification of the XML Schema language. It defines facilities for defining datatypes to be used in specifications. (W3C Recommendation 2 May 2001)
Part of the official XML Schema definition. A non-normative document intended to provide an easily readable description of the XML Schema facilities. (W3C Recommendation 2 May 2001)