English operator: Panoramio described at URL: https://web.archive.org/web/20161012233349/http://www.panoramio.com/photo/18388294...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016184350/http://www.panoramio.com/photo/47121344...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028063036/http://www.panoramio.com/photo/100335695 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028082852/http://www.panoramio.com/photo/100335672...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028023622/http://www.panoramio.com/photo/100335630...