RELAX NG Specification
The definitive specification of RELAX NG, a simple schema language for XML, based on [RELAX] and [TREX]. A RELAX NG schema specifies a pattern for the structure and content of an XML document. A RELAX NG schema is itself an XML document.
Produced by:OASIS RELAX NG TC
[relaxng-ng-specification] RELAX NG Specification. Edited by James Clark and Murata Makoto. 3 December 2001. OASIS Committee Specification. https://www.oasis-open.org/committees/relax-ng/spec-20011203.html.