Bildinfo

• Oben:

Source

• Oben:
  

• Created: October 1st, 2006 on Wikimedia Commons
  

• Author: LucasVB on Wikimedia Commons
  

• Unten:
  

• Created: February 5th, 2020
  

• Author: Gunter Heim
  

License

• Oben:
  

• LucasVB writes:
  

• I, the copyright holder of this work, release this work into the public domain.
  

• This applies worldwide.
  

• In some countries this may not be legally possible; if so:
  

• I grant anyone the right to use this work for any purpose, ...
  

• without any conditions, unless such conditions are required by law.
  

• Unten:
  

• The photograph is in the Public Domain.
  

Warranty

• No guarantee can be given as to the correctness of facts implied or explicitly stated.
  

• Usage is completey at your own risk. 💣
  

Originalseite

• Das Bild ist Teil eines online-Lexikons.
  

• Rhetos Lernlexikon Mathematik, Aachen:
  

• Siehe unter 👉 Torus