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English operator: Panoramio described at URL: https://web.archive.org/web/20161027072946/http://www.panoramio.com/photo/84063367...
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English operator: Panoramio described at URL: https://web.archive.org/web/20161010174714/http://www.panoramio.com/photo/2266527...
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English operator: Panoramio described at URL: https://web.archive.org/web/20161012130753/http://www.panoramio.com/photo/14682891 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161010192206/http://www.panoramio.com/photo/2266447...
English operator: Panoramio described at URL: https://web.archive.org/web/20161011203257/http://www.panoramio.com/photo/57559...
English operator: Panoramio described at URL: https://web.archive.org/web/20161110013259/http://www.panoramio.com/photo/40888976...