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| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 69 95 |
| Cross references | GB/T 26265 (2010), MOD |
| Modified by | ITU-T X Supplement 25 (2016-03) |
| Year | 2008 |
| Document history | |
| Country | International |
| Keyword | CCITT X.1231;ITU-T 1231;1231;ITU-T X.1231 |