Permissions
This project was constructed to respect principles of “fair use” in a non-profit, educational context. It makes use of materials that are represented by the sources consulted as being in the public domain or openly available in return for acknowledgement. We gratefully acknowledge these materials in the list below. Every effort has been made to trace copyright holders and to exclude copyrighted materials for which it would be necessary to obtain permissions. We apologize for any errors or omissions in the list and would be grateful if notified of any corrections that should be incorporated in future versions of this project.
1.1
www.diercke.de/kartenansicht.xtp?artId=978-3-14-100700-8&seite=…
2.1
www.flickr.com/photos/didiervidal/3381978635
3.1
www.flickr.com/photos/thomasbrauner/846009195
3.2
https://de.wikipedia.org/wiki/Datei:Bio-Siegel-EG-%C3%96ko-VO-D…
4.5
http://www.publicdomainpictures.net/view-image.php?image=5352&p…;
5.1
http://www.pixelio.de/media/542468
5.3
http://www.publicdomainpictures.net/view-image.php?image=7494&p…
http://www.publicdomainpictures.net/view-image.php?image=15761&…
http://www.publicdomainpictures.net/view-image.php?image=5286&p…
6.1
https://www.flickr.com/photos/gruene-bremen/2436790974/in/photo…
7.1
http://www.pixelio.de/media/485837
7.6
https://de.wikipedia.org/w/index.php?title=Datei:Zeichen_242.sv…
8.1
http://www.pixelio.de/media/515850
8.2
http://www.publicdomainpictures.net/view-image.php?image=1703&p…
http://www.publicdomainpictures.net/view-image.php?image=3242&p…
http://www.publicdomainpictures.net/view-image.php?image=13081&…
http://www.publicdomainpictures.net/view-image.php?image=342&pi…
http://www.publicdomainpictures.net/view-image.php?image=3061&p…
http://www.publicdomainpictures.net/view-image.php?image=137&pi…
9.1
http://www.pixelio.de/media/320434
9.2
http://www.publicdomainpictures.net/view-image.php?image=511&pi…
http://www.publicdomainpictures.net/view-image.php?image=10450&…
9.4
http://www.publicdomainpictures.net/view-image.php?image=6971&p…
http://www.publicdomainpictures.net/view-image.php?image=4080&p…
10.1
http://www.pixelio.de/media/476856
11.1
https://www.flickr.com/photos/lendog64/4960828396/in/photostream
12.1
http://www.pixelio.de/media/114145
13.1
13.4
http://www.publicdomainpictures.net/view-image.php?image=1937&p…
14.1
http://www.pixelio.de/media/452671
15.1
https://www.flickr.com/photos/calamity_photography/4745146362/