English operator: Panoramio described at URL: https://web.archive.org/web/20161025155753/http://www.panoramio.com/photo/72861324...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025003332/http://www.panoramio.com/photo/72861281...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027011602/http://www.panoramio.com/photo/73405011...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028140010/http://www.panoramio.com/photo/98609131...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027002600/http://www.panoramio.com/photo/73405051...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029143017/http://www.panoramio.com/photo/105160860...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028105217/http://www.panoramio.com/photo/98609127...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102123733/http://www.panoramio.com/photo/105160857...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029143138/http://www.panoramio.com/photo/105160862 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029143137/http://www.panoramio.com/photo/105160861...