Panoramio described at URL: https://web.archive.org/web/20161102144539/http://www.panoramio.com/photo/60169610 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161012082439/http://www.panoramio.com/photo/13946778 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161024224746/http://www.panoramio.com/photo/80937136 determination method or standard: SHA-1...
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