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Of course we use pictures to make our texts more descriptive and explainable.
Thus the pictures represent an important support for our visitors.

We have very carefully checked all images for licenses.
All images we use are royalty-free images.

This does not mean that you are allowed to download and use the images.
The images are subject to copyright.

In most cases, source information is required for the respective image.

For this reason we have integrated a list of all necessary information on this page.

Page URLImage URL License© / Steffen Schumann© / Alexander Savchuk© / Radka Linkova CC0 CC0 Schwichtenberg[CC BY-SA 3.0], from Wikimedia Commons Schwichtenberg CC BY-SA 3.0, from Wikimedia Commons Schwichtenberg [CC BY-SA 3.0], via Wikimedia Commons 1.0 Universal (CC0 1.0) 1.0 Universal (CC0 1.0) 1.0 Universal (CC0 1.0) Albin Olsson - Own work, CC BY-SA 3.0, Link / patronestaff [CC BY-SA 4.0], via Wikimedia Commons© / Paul Fleet Werner/Tsui
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