ITU-T Rec. X.680 (07/2002)/Amd 2 (08/2004) — Information Technology — Abstract Syntax Notation One (ASN.1): Specification of Basic Notation (2002) — Amendment 2: Alignment with Changes Made to ITU-T Rec. X.660 | ISO/IEC 9834-1 for Identifiers in Object Identifer Value Notation | SpecAtlas