English operator: Panoramio described at URL: https://web.archive.org/web/20161023212314/http://www.panoramio.com/photo/51176735...
English operator: Panoramio described at URL: https://web.archive.org/web/20161018023016/http://www.panoramio.com/photo/48209615...
English operator: Panoramio described at URL: https://web.archive.org/web/20161020040020/http://www.panoramio.com/photo/51022441...
English operator: Panoramio described at URL: https://web.archive.org/web/20161021091801/http://www.panoramio.com/photo/53014220 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161017120243/http://www.panoramio.com/photo/46150912...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016132752/http://www.panoramio.com/photo/45380751 determination method:...
English operator: Panoramio described at URL: https://web.archive.org/web/20161017181818/http://www.panoramio.com/photo/48209649 determination method...
archive.org/web/20161025173646/http://www.panoramio.com/user/185258?with_photo_id=75504601 operator: Panoramio described at URL: https://web.archive...