English operator: Panoramio described at URL: https://web.archive.org/web/20161027213421/http://www.panoramio.com/photo/91549596...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027223727/http://www.panoramio.com/photo/99220925...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028104006/http://www.panoramio.com/photo/99221305...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102014211/http://www.panoramio.com/photo/122412361...
Panoramio described at URL: https://web.archive.org/web/20161031121604/http://www.panoramio.com/photo/125982502 determination method or standard: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161019215324/http://www.panoramio.com/photo/61824867...
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