[EBUTTD] TECH3380 EBU-TT-D SUBTITLING DISTRIBUTION FORMAT. W3C https://tech.ebu.ch/publications/tech3380

[ISOSCHEMA] ISO/IEC 19757-3, Information technology — Document Schema Definition Languages (DSDL) - Part 3: Rule-based validation - Schematron. 15 January 2016, ISO/IEC http://standards.iso.org/ittf/PubliclyAvailableStandards/c055982_ISO_IEC_19757-3_2016.zip

[MAFICHTE] Barbara Fichte: Strategien zur benutzerorientierten Konformitätsprüfung von XML-Dokumenten. 15 June 2014, Technische Universität München

[IMSC11] Pierre Lemieux: TTML Profiles for Internet Media Subtitles and Captions 1.1. W3C https://www.w3.org/TR/ttml-imsc1.1/

[TTML2] Glenn AdamsCyril Concolato: Timed Text Markup Language 2 (TTML2). W3C https://www.w3.org/TR/ttml2/