English operator: Panoramio described at URL: https://web.archive.org/web/20161011074511/http://www.panoramio.com/photo/6613757...
English operator: Panoramio described at URL: https://web.archive.org/web/20161011032835/http://www.panoramio.com/photo/6613711...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012041622/http://www.panoramio.com/photo/14891111 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012085238/http://www.panoramio.com/photo/12055519...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013052318/http://www.panoramio.com/photo/12055469...
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