Panoramio described at URL: https://web.archive.org/web/20161023113258/http://www.panoramio.com/photo/63374466 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161024185132/http://www.panoramio.com/photo/89075716 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161024185133/http://www.panoramio.com/photo/89075718 determination method or standard: SHA-1...