English operator: Panoramio described at URL: https://web.archive.org/web/20161028181036/http://www.panoramio.com/photo/90720450...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029174330/http://www.panoramio.com/photo/90720506...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029225122/http://www.panoramio.com/photo/90720586 determination method...
archive.org/web/20161021133615/http://www.panoramio.com/user/4447772?with_photo_id=58871205 operator: Panoramio described at URL: https://web.archive...