English operator: Panoramio described at URL: https://web.archive.org/web/20161014115219/http://www.panoramio.com/photo/22990819...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014002513/http://www.panoramio.com/photo/22990851...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014002625/http://www.panoramio.com/photo/22990857 determination method...