English operator: Panoramio described at URL: https://web.archive.org/web/20161102211649/http://www.panoramio.com/photo/112935272...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028052025/http://www.panoramio.com/photo/105188293 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102151042/http://www.panoramio.com/photo/105188309...