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| Packet switched domain interoperability between second and third generation mobile technologies | 109 |
| tammikuu 2013 | helmikuu 2013 | maaliskuu 2013 | huhtikuu 2013 | toukokuu 2013 | |
| Packet switched domain interoperability between second and third generation mobile technologies | 39 | 22 | 16 | 23 | 9 |
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