This is a file from the Wikimedia Commons and may be used by other projects. Information from its description page there is shown below. Commons is a freely licensed media file repository.
Flexible licenses: Feel free to choose one of the free licenses stated below. Usage is free of charge, but this image is not in the public domain. If you would like special permission to use, or license this image please contact me to negotiate terms.
Using online: For an example of reusing my images look at the right. It shows the name and a link to the used license.
Using in printed media: Whether near the image or in a separate image directory, it should be specified: Photo: Rainer Knäpper, Free Art License (http://artlibre.org/licence/lal/en/), https://commons.wikimedia.org/wiki/File:Lueneburg_banner.jpg
Copyleft: This work of art is free; you can redistribute it and/or modify it according to terms of the Free Art License. You will find a specimen of this license on the Copyleft Attitude site as well as on other sites. http://artlibre.org/licence/lal/enFALFree Art Licensefalsetrue
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 only as published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.