Bildnachweise

© Arnd Drifte– photocase.de (ImageID: 224249)
https://www.photocase.de/fotos/224249-wasserfall-natur-schoen-sommer-ferien-und-urlaub-und-reisen-photocase-stock-foto

© Boris Jovanovic – stocksy.com (ImageID: 1095880)
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© Boris Jovanovic – stocksy.com (ImageID: 1095881)
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© Catalenca – photocase.de (ImageID: 1972112)
https://www.photocase.de/fotos/1972112-gedeihen-natur-pflanze-gruen-wasser-klein-garten-braun-photocase-stock-foto

© Criene – photocase.de (ImageID: 1931031)
https://www.photocase.de/fotos/1931031-geeignete-kaukasische-aeltere-paare-die-auf-felsen-im-wald-wandern-photocase-stock-foto

© Daniel Ghio – unsplash.com
https://unsplash.com/photos/Ob3Teol4xAA

© demoll – photocase.de (ImageID: 191519)
https://www.photocase.de/fotos/191519-wurzeln-am-boden-natur-baum-wald-holz-wachstum-licht-photocase-stock-foto

© Fotofee61 – photocase.de (ImageID: 1902692)
https://www.photocase.de/fotos/1902692-hostablatt-natur-pflanze-farbe-gruen-schoen-blatt-leben-photocase-stock-foto

© Funkenschlag – photocase.de (ImageID: 1748518)
https://www.photocase.de/fotos/1748518-waldbeeren-natur-pflanze-gruen-rot-blatt-schwarz-umwelt-photocase-stock-foto

© lube – photocase.de (ImageID: 1835562)
https://www.photocase.de/fotos/1835562-wandern-in-villnoess-3-ferien-und-urlaub-und-reisen-ferne-photocase-stock-foto

© Malte Joost

© Pixel Stories – stocksy.com (ImageID: 1269943)
https://www.stocksy.com/1269943

© Polarpx – photocase.de (ImageID: 1901472)
https://www.photocase.de/fotos/1901472-herbst-ahornblatt-in-einem-wald-natur-pflanze-farbe-gruen-photocase-stock-foto

© Roche Pharma AG

© Shikhar Bhattarai – stocksy.com (ImageID: 323284)
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© Sora Sagano – unsplash.com
https://unsplash.com/photos/Q-wPqMx3X1I

© Suze – photocase.de (ImageID: 209741)
https://www.photocase.de/fotos/209741-ueberflieger-himmel-natur-blau-tier-umwelt-freiheit-luft-photocase-stock-foto

© Sven van der Pluijm – unsplash.com
https://unsplash.com/photos/52J7km2qTjk

 

Stand: Mai 2018