English operator: Panoramio described at URL: https://web.archive.org/web/20161025013803/http://www.panoramio.com/photo/74907003...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025010848/http://www.panoramio.com/photo/77105212...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102120220/http://www.panoramio.com/photo/113432996...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102120133/http://www.panoramio.com/photo/113432991 determination method...
archive.org/web/20161024123306/http://www.panoramio.com/user/530617?with_photo_id=70852044 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161017115515/http://www.panoramio.com/user/2759602?with_photo_id=46221553 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014151821/http://www.panoramio.com/photo/32897939...
archive.org/web/20161028113641/http://www.panoramio.com/user/3622506?with_photo_id=92336467 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023035635/http://www.panoramio.com/photo/51602208...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028030458/http://www.panoramio.com/photo/105950798...
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