English operator: Panoramio described at URL: https://web.archive.org/web/20161025132719/http://www.panoramio.com/photo/72278921...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029064526/http://www.panoramio.com/photo/100013919...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023174509/http://www.panoramio.com/photo/57774305...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027211604/http://www.panoramio.com/photo/98635336...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031010230/http://www.panoramio.com/photo/127856821...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028122855/http://www.panoramio.com/photo/100902404...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028055829/http://www.panoramio.com/photo/100902435...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030060215/http://www.panoramio.com/photo/100559230...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102190236/http://www.panoramio.com/photo/100906212...
English operator: Panoramio described at URL: https://web.archive.org/web/20161103141251/http://www.panoramio.com/photo/133063501 determination method...