English operator: Panoramio described at URL: https://web.archive.org/web/20161028232435/http://www.panoramio.com/photo/100669562 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031081256/http://www.panoramio.com/photo/100670083...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028123209/http://www.panoramio.com/photo/100670188...