English operator: Panoramio described at URL: https://web.archive.org/web/20161029034758/http://www.panoramio.com/photo/90833738...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029143823/http://www.panoramio.com/photo/90325235...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031062503/http://www.panoramio.com/photo/106881776 determination method...