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English operator: Panoramio described at URL: https://web.archive.org/web/20161020070901/http://www.panoramio.com/photo/54775504...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013080535/http://www.panoramio.com/photo/11675131...
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English operator: Panoramio described at URL: https://web.archive.org/web/20161103182050/http://www.panoramio.com/photo/133795518 determination method...
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English operator: Panoramio described at URL: https://web.archive.org/web/20161013061236/http://www.panoramio.com/photo/15819523...
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