English operator: Panoramio described at URL: https://web.archive.org/web/20161025071659/http://www.panoramio.com/photo/81008410...
archive.org/web/20161024122029/http://www.panoramio.com/user/3794713?with_photo_id=80749730 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025192653/http://www.panoramio.com/user/3794713?with_photo_id=80227188 operator: Panoramio described at URL: https://web.archive...
Ángel; SIERRA CANDUELA, Jorge A.; NAVARRO SANZ, Santiago; SAORÍN, Tomás (2012). "Wiki Loves Monuments 2011: the experience in Spain and reflections regarding...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025033826/http://www.panoramio.com/photo/80711439...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024185144/http://www.panoramio.com/photo/88132381...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026155421/http://www.panoramio.com/photo/81080428...
archive.org/web/20161025092038/http://www.panoramio.com/user/2875355?with_photo_id=81358663 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026224613/http://www.panoramio.com/photo/81008373...
archive.org/web/20161025161759/http://www.panoramio.com/user/5773884?with_photo_id=81626639 operator: Panoramio described at URL: https://web.archive...
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