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English operator: Panoramio described at URL: https://web.archive.org/web/20161018023016/http://www.panoramio.com/photo/48209615...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016185330/http://www.panoramio.com/photo/45380688 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161020123639/http://www.panoramio.com/photo/55384119...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023141340/http://www.panoramio.com/photo/53189326...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023145815/http://www.panoramio.com/photo/50970249...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023231012/http://www.panoramio.com/photo/51176246...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023145320/http://www.panoramio.com/photo/51073758...
English operator: Panoramio described at URL: https://web.archive.org/web/20161021044417/http://www.panoramio.com/photo/56369964 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161021075708/http://www.panoramio.com/photo/51071326...