English operator: Panoramio described at URL: https://web.archive.org/web/20161021081135/http://www.panoramio.com/photo/61170224...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024215421/http://www.panoramio.com/photo/72404743...
archive.org/web/20161015112403/http://www.panoramio.com/user/4208745?with_photo_id=33454229 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025235211/http://www.panoramio.com/user/163555?with_photo_id=78505177 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025101228/http://www.panoramio.com/user/163555?with_photo_id=77256285 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161011064325/http://www.panoramio.com/photo/3259464...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025094336/http://www.panoramio.com/photo/87024128...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031160556/http://www.panoramio.com/photo/118320876...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025092046/http://www.panoramio.com/photo/87037190...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027111336/http://www.panoramio.com/photo/73088276 determination method...