English operator: Panoramio described at URL: https://web.archive.org/web/20161025191304/http://www.panoramio.com/photo/81008433...
archive.org/web/20161027024857/http://www.panoramio.com/user/3794713?with_photo_id=80749763 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161027005457/http://www.panoramio.com/user/3794713?with_photo_id=80227205 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...
[{Category:October 2012 in rail transport in China]] English operator: Panoramio described at URL: https://web.archive.org/web/20161029211128/http://www...
panoramio.com/user/62601?with_photo_id=82032915 operator: Panoramio described at URL: https://web.archive.org/web/20161024202711/http://www.panoramio...
panoramio.com/user/62601?with_photo_id=82032917 operator: Panoramio described at URL: https://web.archive.org/web/20161024202717/http://www.panoramio...
archive.org/web/20161025152646/http://www.panoramio.com/user/1238588?with_photo_id=85790589 operator: Panoramio described at URL: https://web.archive...
panoramio.com/user/62601?with_photo_id=82033851 operator: Panoramio described at URL: https://web.archive.org/web/20161024190729/http://www.panoramio...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025010918/http://www.panoramio.com/photo/80711475...