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- © Benjamin Klingebiel, E-mail an Erik Möller, 4. Oktober 2005. Original uploader was Mamboben at de.wikipedia
- Copyright licence: CC-BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0/)
- Provenance: http://media.eol.org/content/2013/11/30/23/93014_orig.jpg