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References
 | This article needs additional citations for verification .(July 2008) |
- ↑ "Vodafone übernimmt Arcor vollständig" (in German). Deutscher Depeschendienst. 19 May 2008. Archived from the original on 2011-07-18. Retrieved 2008-09-02.
- ↑ "Acquisition of Minority Interests in Arcor". Vodafone. 2008-05-19. Retrieved 2009-05-31.
- ↑ "Arcor sperrt Zugriff auf Porno-Seiten" (in German). Heise Online. 2007-09-10. Retrieved 2008-09-02.
