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ASC X9 TR-38-4:2009 (Identical to ISO/TS 20022-4:2004)
Financial services - UNIversal Financial Industry message scheme - Technical Report - Part 4: ISO 20022 XML
XML is a technical standard defined by W3C (the World Wide Web Consortium) that can be used for the physical representation (i.e. the syntax) of standardized ISO 20022 Messages. (Identical to ISO/TS 20022-4:2004)
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Accredited Standards Committee, Inc. - Financial Industry Standards [ascx9]