English operator: Panoramio described at URL: https://web.archive.org/web/20161027112455/http://www.panoramio.com/photo/81663697 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025101801/http://www.panoramio.com/photo/81048501 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024233129/http://www.panoramio.com/photo/82938454 determination method: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161022112551/http://www.panoramio.com/photo/61303912 determination method or standard: SHA-1...
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