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Autor:

Stefan Zachow. Oryginalnym przesyłającym był Geometry guy z angielskiej Wikipedii Later versions were uploaded by Ianmacm at en.wikipedia.

Oryginalnym przesyłającym był Geometry guy z angielskiej Wikipedii

Credit:

Originally from en.wikipedia; description page is/was here.

Krótki link:

https://www.plwiki.pl/b/12b6

źródło:

Wikimedia Commons

Wymiary:

800 x 769 Pixel (117793 Bytes)

Opis:

The photo carries no copyright and may be freely used for publications. IMU requests, though, that Stefan Zachow's authorship is duly acknowledged. This is the medal that was declined in 2006 by en:Grigori Perelman for his work on the en:Poincaré conjecture. Source: The International Mathematical Union (with more detailed information about copyright at an image description page there)

Licencja:

Public domain

Komentarz do licencji:

(PD-AUTHOR; Released into the public domain (by the author).)