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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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to remix – to adapt the work
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share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
I have published this image as author Uli Elch under the "CC-BY-SA-4.0" in Wikipedia. This means that free, commercial usage outside of Wikipedia is permitted under the following licence terms:
Online media: 1. The author "Uli Elch/Wikipedia" is named
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Print media: 1. The author "Uli Elch/Wikipedia" is named.