--- /dev/null
+Reference
+---------
+
+| [1] ETSI GS NFV 002 (V1.1.1): “Architectural Framework”
+| [2] ETSI GS NFV 003 (V1.1.1): "Terminology for Main Concepts in NFV".
+| [3] ETSI GS NFV-SWA001:“Virtual Network Function Architecture”
+| [4] ETSI GS NFV-MAN001:“Management and Orchestration”
+| [5] ETSI GS NFV-REL001:"Resiliency Requirements"
+| [6] QuEST Forum TL-9000:"Quality Management System Requirement
+ Handbook"
+| [7] Service Availability Forum AIS:"Software Management Framework"
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