English operator: Panoramio described at URL: https://web.archive.org/web/20161028200818/http://www.panoramio.com/photo/105568857...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101000439/http://www.panoramio.com/photo/105568827...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030124608/http://www.panoramio.com/photo/92674176...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013081425/http://www.panoramio.com/photo/12201751 determination method...
archive.org/web/20161020090830/http://www.panoramio.com/user/3057152?with_photo_id=55056998 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161102191741/http://www.panoramio.com/user/8214317?with_photo_id=114443844 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161012032814/http://www.panoramio.com/user/288043?with_photo_id=12649935 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161031061124/http://www.panoramio.com/user/8214317?with_photo_id=114443854 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161023221731/http://www.panoramio.com/user/5317601?with_photo_id=58210174 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161014001932/http://www.panoramio.com/user/1539532?with_photo_id=28591725 operator: Panoramio described at URL: https://web.archive...
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