English operator: Panoramio described at URL: https://web.archive.org/web/20161028200651/http://www.panoramio.com/photo/109659194...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102210814/http://www.panoramio.com/photo/125016480...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028062628/http://www.panoramio.com/photo/109590541...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030120709/http://www.panoramio.com/photo/109590557 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030123421/http://www.panoramio.com/photo/109472403...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031035514/http://www.panoramio.com/photo/126063984...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102122833/http://www.panoramio.com/photo/109659187...
English operator: Panoramio described at URL: https://web.archive.org/web/20161103022702/http://www.panoramio.com/photo/125157595 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101112126/http://www.panoramio.com/photo/112845346...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102165300/http://www.panoramio.com/photo/124545286...