== Eksterne henvisninger ==
{{Commonskat|Numbers stations}}
* Youtube: [https://www.youtube.com/watch?v=Xkc_Ig87TnM Number Stations Revealed - Part 1 of 6: The Spanish Voice Behind The "Atencion" Numbers Station]
* [http://www.apul64.dsl.pipex.com/enigma2000/ ENIGMA 2000] {{Webarchive|url=https://web.archive.org/web/20140424025158/http://www.apul64.dsl.pipex.com/enigma2000/ |date=24. april 2014 }} (engelsk)
* [http://www.bbc.com/news/magazine-24910397 «The spooky world of the 'numbers stations'»], artikel fra BBC News Magazine 16. april 2014 (engelsk)
* [http://www.esquire.com/the-side/feature/numbers-station-07-31-08 «Secrets in the Static»], fra magasinet ''Esquire'', 31. juli 2008 (engelsk)
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