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English operator: Panoramio described at URL: https://web.archive.org/web/20161015042726/http://www.panoramio.com/photo/35908920...
English operator: Panoramio described at URL: https://web.archive.org/web/20161015065546/http://www.panoramio.com/photo/35908417...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014200306/http://www.panoramio.com/photo/35942543...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014175513/http://www.panoramio.com/photo/36269710 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161110152108/http://www.panoramio.com/photo/41052666...
English operator: Panoramio described at URL: https://web.archive.org/web/20161020055029/http://www.panoramio.com/photo/50268907 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161015063956/http://www.panoramio.com/photo/36270199...
English operator: Panoramio described at URL: https://web.archive.org/web/20161015042322/http://www.panoramio.com/photo/36270574...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014171048/http://www.panoramio.com/photo/37435262...