English operator: Panoramio described at URL: https://web.archive.org/web/20161027160831/http://www.panoramio.com/photo/91814966...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028210359/http://www.panoramio.com/photo/106180515 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024124057/http://www.panoramio.com/photo/70593057 determination method...
Panoramio described at URL: https://web.archive.org/web/20161028093500/http://www.panoramio.com/photo/109619738 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161030022324/http://www.panoramio.com/photo/105500444 determination method or standard: SHA-1...
archive.org/web/20161102150431/http://www.panoramio.com/user/6452510?with_photo_id=115263084 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028010101/http://www.panoramio.com/user/416358?with_photo_id=107924870 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161102195816/http://www.panoramio.com/user/6452510?with_photo_id=118464013 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161013213902/http://www.panoramio.com/user/2184098?with_photo_id=23191393 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161103025008/http://www.panoramio.com/user/6452510?with_photo_id=118523616 operator: Panoramio described at URL: https://web.archive...