Panoramio described at URL: https://web.archive.org/web/20161020211204/http://www.panoramio.com/photo/50958843 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161019185949/http://www.panoramio.com/photo/50958609 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161024132739/http://www.panoramio.com/photo/72544835 determination method or standard: SHA-1...
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