search query: @keyword telecommunication service / total: 3
references: 1-3 / 3
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| title | year | author | ||
| 1. | 1997 | Viljanen, Ronny |
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| 2. | 1993 | Huotelin, Ilkka |
||
| 3. | 1987 | Berg, Venla |
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INSSI
| title | year | author | ||
| 1. | 1997 | Viljanen, Ronny |
||
| 2. | 1993 | Huotelin, Ilkka |
||
| 3. | 1987 | Berg, Venla |