• Freely use and distribute it for non-commercial or for commercial purposes
• Create derivative works of it

Under these conditions:

• Credit me as the original author. To do so add author, source, and licence like so "Johannes Maximilian, Wikimedia Commons, CC-BY-SA 4.0" next to the image. It must be well-visible. Please note that it is not allowed to omit author or licence information! Using, for example, "Source: Wikipedia" or "Picture credit: Wikimedia Commons" without naming me as the author, violates the terms of the licence!
• Deriative works of this picture must be published under the CC-BY-SA 4.0 licence, too.

Please, use this work legally fulfilling the terms of the licence! If, for any reasons, fulfilling the terms of the licence is not possible, please contact me before using this picture. Send me an email to jj.wikipedia(at)gmx.at

Please, let me know if you use this work outside Wikimedia Commons. To do so, send me an email to the email address above.
Please include the URL in the case of a website or the ISBN/author/title in the case of a printed work or eBook. I am always very glad if you consider sending me a specimen copy or a promocode for the eBook if you use any of my pictures. Note: This file has been released under a licence which is incompatible with Facebook's licencing terms. It is not allowed to upload this file to Facebook.

Furthermore, if you:

• want to use this work under other conditions,
• want me to rework this file out of the original RAW file, or get the RAW file, or
• search for a similar picture;

please, do not hesitate to contact me.