English operator: Panoramio described at URL: https://web.archive.org/web/20161031002530/http://www.panoramio.com/photo/117834148...
English operator: Panoramio described at URL: https://web.archive.org/web/20161015082321/http://www.panoramio.com/photo/30605599...
English operator: Panoramio described at URL: https://web.archive.org/web/20161103091300/http://www.panoramio.com/photo/133630391...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028092207/http://www.panoramio.com/photo/94063292 determination method...
archive.org/web/20161014143243/http://www.panoramio.com/user/346659?with_photo_id=30007718 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029212356/http://www.panoramio.com/photo/108436410...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102040659/http://www.panoramio.com/photo/121418876...
English operator: Panoramio described at URL: https://web.archive.org/web/20161103193155/http://www.panoramio.com/photo/131804582...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026173328/http://www.panoramio.com/photo/84703089...
English operator: Panoramio described at URL: https://web.archive.org/web/20170516095444/http://www.panoramio.com/photo/120333260...
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