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• ITU-T RECOMMENDATION I.140 (1988)
• 1 General considerations
• 2 Attribute technique
  • 2.1 Outline of the technique
  • 2.2 Basic rules
  • 2.3 Attribute lists
  • 2.4 Attribute definition
• 3 Application to the I-Series Recommendations
• ANNEX A - List of definitions of attributes and attribute values
• A.1 Definitions of the attributes
• A.2 Definition of the attribute values