Guarino, L. (2008) Fish [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/luigi_and_linda/2355180388/sizes/l
Albrecht, A. (2016) Katoffeln [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/134465805@N06/24900346352/in/photolist-DWmMsq
Rob (2009) RIMG0052 [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/robertlippert/3573153005/sizes/l
Stefan (2009) Orangen [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/92703742@N04/8426272657/sizes/l
Hallmann, O. (2011) Steak [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/ohallmann/6287281006/sizes/l
Fenwench (2014) Salad [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/fenwench/14558153034/sizes/l
Zimny, G. (2005) Vitamine rot [photo] Retrieved on 2017, May 31 from https://www.flickr.com/photos/gerd_zimny/4938319644/sizes/l