archive.org/web/20161102132411/http://www.panoramio.com/user/2905547?with_photo_id=111121491 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031072209/http://www.panoramio.com/photo/110911817 determination method...
archive.org/web/20161025090024/http://www.panoramio.com/user/5467819?with_photo_id=88079311 operator: Panoramio described at URL: https://web.archive...