Panoramio described at URL: https://web.archive.org/web/20161102201333/http://www.panoramio.com/photo/42538631 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161102210138/http://www.panoramio.com/photo/42538607 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161025041434/http://www.panoramio.com/photo/74692000 determination method or standard: SHA-1...
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