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observations intégrées | |||
observations additives |
integrated data : 28 phrases in 10 subjects |
Coal | 1 |
Communications | 9 |
Computers | 2 |
General | 1 |
Information technology | 6 |
Name of organization | 2 |
Statistics | 2 |
Telecommunications | 3 |
Trade unions | 1 |
Transport | 1 |