Barcelona English operator: Panoramio described at URL: https://web.archive.org/web/20161030051612/http://www.panoramio.com/photo/90769649 determination...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025131906/http://www.panoramio.com/photo/72834770 determination method...
archive.org/web/20161014090016/http://www.panoramio.com/user/2369584?with_photo_id=26661300 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161030173445/http://www.panoramio.com/user/3227857?with_photo_id=122228214 operator: Panoramio described at URL: https://web.archive...
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