<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">RelaxNG</hi> (2008): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">ISO/IEC 19757-2:2008. Information technology -- Document Schema Definition Language (DSDL) -- Part 2: Regular-grammar-based validation -- RELAX NG. </hi> <ptr xmlns="http://www.tei-c.org/ns/1.0" target="http://standards.iso.org/ittf/PubliclyAvailableStandards/c052348_ISO_IEC_19757-2_2008(E).zip" />