English operator: Panoramio described at URL: https://web.archive.org/web/20161013212040/http://www.panoramio.com/photo/26682384...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012140602/http://www.panoramio.com/photo/18388131...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014042043/http://www.panoramio.com/photo/26682830...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030103551/http://www.panoramio.com/photo/106166991...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029234708/http://www.panoramio.com/photo/101615462...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030015316/http://www.panoramio.com/photo/92580356...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101190626/http://www.panoramio.com/photo/92580341...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030014504/http://www.panoramio.com/photo/92580350...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101190717/http://www.panoramio.com/photo/92580349...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101190643/http://www.panoramio.com/photo/92580344 determination method...