English operator: Panoramio described at URL: https://web.archive.org/web/20161020105901/http://www.panoramio.com/photo/53985803...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027165451/http://www.panoramio.com/photo/107721010...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029232648/http://www.panoramio.com/photo/107721026...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028223355/http://www.panoramio.com/photo/107721007...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028053427/http://www.panoramio.com/photo/107721068...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029130946/http://www.panoramio.com/photo/107721074...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027165656/http://www.panoramio.com/photo/107721016 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029232602/http://www.panoramio.com/photo/107721021...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028125130/http://www.panoramio.com/photo/107721039...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027165642/http://www.panoramio.com/photo/107721012...