English operator: Panoramio described at URL: https://web.archive.org/web/20161024155347/http://www.panoramio.com/photo/73156051...
Panoramio described at URL: https://web.archive.org/web/20161011062131/http://www.panoramio.com/photo/6489265 determination method or standard: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161015033226/http://www.panoramio.com/photo/38121146 determination method...
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