ISO/IEC 3309:1991 Information technology; telecommunications and information exchange between systems; high-level data link control (HDLC) procedures; frame structure
1993ISO/IEC 3309:1993 Information technology; telecommunications and information exchange between systems; high-level data link control (HDLC) procedures; frame structure
1991ISO/IEC 3309:1991 Information technology; telecommunications and information exchange between systems; high-level data link control (HDLC) procedures; frame structure