English operator: Panoramio described at URL: https://web.archive.org/web/20161031220012/http://www.panoramio.com/photo/125443263...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031212326/http://www.panoramio.com/photo/125443245 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161101083048/http://www.panoramio.com/photo/125443231 determination method: SHA-1...