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- © Original uploader was Der Irbis at de.wikipedia. (Original text : F. Spangenberg (Benutzer:Der Irbis))
- Copyright licence: CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)
- Provenance: http://media.eol.org/content/2013/11/15/08/01097_orig.jpg