English operator: Panoramio described at URL: https://web.archive.org/web/20161102211719/http://www.panoramio.com/photo/122692416...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014194955/http://www.panoramio.com/photo/39235866...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031174904/http://www.panoramio.com/photo/114015734...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031213730/http://www.panoramio.com/photo/114015742...
archive.org/web/20161029163015/http://www.panoramio.com/user/4147970?with_photo_id=91720339 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028033007/http://www.panoramio.com/user/6736286?with_photo_id=94487505 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161015175807/http://www.panoramio.com/user/530617?with_photo_id=35054923 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031141705/http://www.panoramio.com/photo/112957283 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031094955/http://www.panoramio.com/photo/112957308 determination method...