annotazioni, fonti e crediti per i fotografi
(le cui foto sono pubblicate ciascuna sotto la relativa licenza Creative Commons)
#1 - Foto di Luca Volpi (www.flickr.com/photos/luca_volpi/5427255433);
#2 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/5779382694);
#3 - Foto di Max Boschini (www.flickr.com/photos/boskizzi/218298347);
#4 - Foto di Russ Ferriday (www.flickr.com/photos/ferriday/3918082667);
#5 - Foto di thefinned1 (www.flickr.com/photos/thefinned1/2856946415);
#6 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/5777059689);
#7 - Foto di Craig Moe (www.flickr.com/photos/60445767@N00/615910687);
#8 - Foto di Jens De Groot (www.flickr.com/photos/jensjeppe/300413381);
#9 - Foto di Bev Sykes (www.flickr.com/photos/basykes/2525013114);
#10 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/7167977189);
#11 - Foto di Jens De Groot (www.flickr.com/photos/jensjeppe/1108312908);
#12 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/2558791931);
#13 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/6499059869);
#14 - Foto di thefinned1 (www.flickr.com/photos/thefinned1/2856957401);
#15 - Foto di Gayle Haider (www.flickr.com/photos/7507886@N07/4663719122);
#16 - Foto di Damian Gadal (www.flickr.com/photos/23024164@N06/4658634632);
#17 - Foto di Raiko Radiuk (www.flickr.com/photos/radiuk/5478432573).
