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| Kommunikation über Computerterminals | |||
| |||
| Bildschirmtextdienst m | |||
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communication by computer terminals : 4 phrases, 1 sujets |
| Brevets | 4 |
| |||
| Kommunikation über Computerterminals | |||
| |||
| Bildschirmtextdienst m | |||
|
communication by computer terminals : 4 phrases, 1 sujets |
| Brevets | 4 |