Rights to use graphics and images

We hold the copyright or the rights of use to all images (photos and graphics) on our web presence "".
Further sources, alongside in-house images, are: Fotolia, 123RF and iStockphoto.

The images that you find on this page are used with reference to and the kind permission of their respective author and are identified with "image source".

The following images are used with kind permission:

 Reference - Verwendung mit freundlicher Genehmigung

   stock.xchng externer Link

   Niels Rameckers externer Link