English operator: Panoramio described at URL: https://web.archive.org/web/20161026045839/http://www.panoramio.com/photo/88634139 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025220645/http://www.panoramio.com/photo/76389057 determination method...
Panoramio described at URL: https://web.archive.org/web/20161020180822/http://www.panoramio.com/photo/61341137 determination method or standard: SHA-1...
archive.org/web/20161020180005/http://www.panoramio.com/user/760796?with_photo_id=61341820 operator: Panoramio described at URL: https://web.archive...