Information technology; telecommunications and information exchange between systems; Open Systems Interconnection; protocol for providing the connection-mode transport service (ISO/IEC 8073:1992 and Technical Corrigendum 1:1993); English version EN 28073:1993— 146 стр.
Open systems interconnection; specification of the protocol for providing the connectionless-mode transport service; identical with ISO 8602:1987— 21 стр.
Information technology; telecommunications and information exchange between systems; Open Systems Interconnection; protocol for providing the connection-mode transport service (ISO/IEC 8073:1992 and Technical Corrigendum 1:1993); English version EN 28073:1993— 146 стр.