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- OGF Standards: Data Format Description Language (DFDL), http://www.ogf.org/dfdl/.
- The Open Grid Foundation Forum Data Format Description Language WG (DFDL-WG), http://redmine.ogf.org/projects/dfdl-wg.
- wikipedia, "Data Format Description Language". 2011, http://en.wikipedia.org/wiki/Data_Format_Description_Language.
- Defuddle (Old) Examples and code: http://sourceforge.net/projects/defuddle.