English operator: Panoramio described at URL: https://web.archive.org/web/20161025015551/http://www.panoramio.com/photo/80188438...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028155321/http://www.panoramio.com/photo/99302533 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029172027/http://www.panoramio.com/photo/99302674...