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Information technology. International standardized profiles AFTnn. File transfer access and management. Part 2. Definition of document types, constraint sets and syntaxes

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Information technology. Open systems interconnection. Procedures for the operation of OSI registration authorities. Part 6. Registration of application processes and application entities

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Means for putting protection covers on documents. General technical requirements

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Communication networks and systems in substations. Part 7-1. Basic communication structure for substation and feeder equipment. Principles and models

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Electronic data interchange for administration, commerce and transport (EDIFACT). Application level syntax rules (Syntax version number: 4, Syntax release number: 1). Part 5: Security rules for batch EDI (authenticity, integrity and non-repudiation of origin)

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Digital television. Wide-screen digital television systems. Basic parameters. Analog and digital representations of signals. Digital parallel Interfaces

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