English operator: Panoramio described at URL: https://web.archive.org/web/20161023122010/http://www.panoramio.com/photo/56185250...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102094356/http://www.panoramio.com/photo/123586648 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013132124/http://www.panoramio.com/photo/27426551...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031003539/http://www.panoramio.com/photo/123586686...