I have published this image as author Ra Boe under the "CC-BY-SA-3.0" in Wikipedia. This means that free, commercial usage outside of Wikipedia is permitted under the following licence terms:

• Online media:
  1. The author " RaBoe/Wikipedia " is named
  2. A weblink to the original image is provided: //commons.wikimedia.org/wiki/File:Hydraulischer_Abgleich_by-Ra_Boe-1.jpg
  3. A copy of, or the Uniform Resource Identifier (https://creativecommons.org/licenses/by-sa/3.0/de/legalcode) for, this License with every copy

• Print media:
  1. The author " RaBoe/Wikipedia" is named
  2. A copy of, or the Uniform Resource Identifier (https://creativecommons.org/licenses/by-sa/3.0/de/legalcode) for, this License with every copy

Please send me a specimen copy or the URL of the website where the image is used.

Please write an email to raboe001-at-web.de, if you

• need the image in a higher resolution
• need my postal address for sending a specimen copy
• have further questions about the terms of the licence

PS: In case of refusal of the above terms the author reserves the right to take legal action.

This license and the rights granted hereunder will terminate automatically upon any breach by you of the terms of this license. In this case the author reserves to demand declaration to cease and desist, and compensation (according to the MFM fee references currently in force).
Any of the above conditions can be waived if you get permission from the copyright holder.