English operator: Panoramio described at URL: https://web.archive.org/web/20161019220838/http://www.panoramio.com/photo/50825847...
archive.org/web/20161029103122/http://www.panoramio.com/user/5932959?with_photo_id=99458430 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161103024310/http://www.panoramio.com/user/4409275?with_photo_id=62336823 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161110001855/http://www.panoramio.com/photo/47317494...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028074833/http://www.panoramio.com/photo/98637383 determination method...
archive.org/web/20161020062038/http://www.panoramio.com/user/6707551?with_photo_id=67078021 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161023230442/http://www.panoramio.com/user/6707551?with_photo_id=67076303 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161014190713/http://www.panoramio.com/user/3298094?with_photo_id=34242912 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161024131009/http://www.panoramio.com/user/7325366?with_photo_id=84320351 operator: Panoramio described at URL: https://web.archive...