Panoramio described at URL: https://web.archive.org/web/20161031092641/http://www.panoramio.com/photo/122544980 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161030183328/http://www.panoramio.com/photo/122635704 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161102035638/http://www.panoramio.com/photo/122635695 determination method or standard: SHA-1...