English operator: Panoramio described at URL: https://web.archive.org/web/20161029090100/http://www.panoramio.com/photo/99647991 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031075731/http://www.panoramio.com/photo/99647934 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102163024/http://www.panoramio.com/photo/99647959 determination method...