English operator: Panoramio described at URL: https://web.archive.org/web/20161017173809/http://www.panoramio.com/photo/47623818...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102204045/http://www.panoramio.com/photo/47623887...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016133424/http://www.panoramio.com/photo/47411908 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016195655/http://www.panoramio.com/photo/47623943...