The International Telegraph and Telephone Consultative Committee Data communication networks open systems interconnection (OSI) model and notation, service definition : recommendations X.200-X.219 / CCITT

Data communication networks open systems interconnection (OSI) model and notation, service definition : recommendations X.200-X.219 / CCITT . - Geneva : International Telecommunication Union, 1989 . - IX, 502 p. : il. 30 cm . - (Blue book . Volume VIII; 4)
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