English operator: Panoramio described at URL: https://web.archive.org/web/20161013202101/http://www.panoramio.com/photo/23331760...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012061006/http://www.panoramio.com/photo/17975080...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014122031/http://www.panoramio.com/photo/22920868...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026163640/http://www.panoramio.com/photo/22920746 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014025126/http://www.panoramio.com/photo/22920665...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012013400/http://www.panoramio.com/photo/17975026...