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current | 11:04, 4 May 2010 | ![]() | 1,113 × 1,770 (451 KB) | Ekuryluk | {{Information |Description={{en|1=Bertrand Russell, The Beauty of Mathematics: Piekno Matematyki in Signals Magazine (1933–1939).}} |Source= Sygnały Magazyn|Author= Sygnały Magazyn|Date=1933-1939|Permission=Unlimited|other_versions= }} |
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