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International Telecommunication Union
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International Telegraph and Telephone Consultative Committee International Telecommunications Union
title
ISBN-13
(ISBN-10)
year of publication
Chill: Formal Definition
978-92-61-O1681-4
(92-61-O1681-2)
1982
I.A.
·
International A
·
T.A.
·
T.T.
International Telephone and Telegraph Corporation