English operator: Panoramio described at URL: https://web.archive.org/web/20161012100133/http://www.panoramio.com/photo/17663938 determination method...
archive.org/web/20161103184946/http://www.panoramio.com/user/4992868?with_photo_id=132559257 operator: Panoramio described at URL: https://web.archive...
