Open Systems Interconnection - Protocol for providing the connectionless-mode network service - Part 3: Provision of the underlying service by an X.25 subnetwork; identical with ISO/IEC 8473-3:1995
Edition 1996-06

Open systems interconnection - Protocol for providing the connectionless-mode network service - Part 4: Provision of the underlying service by a subnetwork that provides the OSI data link service; identical with ISO/IEC 8473-4:1995
Edition 1996-06

Open Systems Interconnection - Protocol for providing the connectionless-mode network service - Part 2: Provision of the underlying service by a DIN ISO/IEC 8802-2 subnetwork (ISO/IEC 8473-2:1996)
Edition 1997-06

Industrial communication networks - Fieldbus specifications - Part 4-11: Data-link layer protocol specification - Type 11 elements (IEC 61158-4-11:2014); English version EN 61158-4-11:2014, only on CD-ROM
Edition 2015-09