English operator: Panoramio described at URL: https://web.archive.org/web/20161027170616/http://www.panoramio.com/photo/98697909...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028030417/http://www.panoramio.com/photo/98698701 determination method...
Panoramio described at URL: https://web.archive.org/web/20161025103631/http://www.panoramio.com/photo/87923836 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161026003403/http://www.panoramio.com/photo/88010121 determination method or standard: SHA-1...
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