English operator: Panoramio described at URL: https://web.archive.org/web/20161025102837/http://www.panoramio.com/photo/84840796...
English operator: Panoramio described at URL: https://web.archive.org/web/20161103184002/http://www.panoramio.com/photo/132920122...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026080833/http://www.panoramio.com/photo/84840757 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024224522/http://www.panoramio.com/photo/84841287 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028204732/http://www.panoramio.com/photo/97023546...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025063450/http://www.panoramio.com/photo/78543465...
archive.org/web/20161025012729/http://www.panoramio.com/user/1368505?with_photo_id=73421601 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161013200437/http://www.panoramio.com/user/3436440?with_photo_id=28543953 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161029100904/http://www.panoramio.com/user/8023310?with_photo_id=99440866 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161027223659/http://www.panoramio.com/user/7660848?with_photo_id=90698191 operator: Panoramio described at URL: https://web.archive...