1. ABNT, Digital terrestrial television – data coding and transmission specification for digital broadcasting – part 2: Ginga-NCL for fixed and mobile receivers – XML application language for application coding, aBNT NBR 15606-2:2011 standard, 2011.
2. ITU, Nested Context Language (NCL) and Ginga-NCL for IPTV services, ITU-T recommendation H.761, 2009.
3. W3C, Extensible Markup Language (XML) 1.0 (fifth edition), World-Wide Web Consortium recommendation, 2008.
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