English operator: Panoramio described at URL: https://web.archive.org/web/20161029143823/http://www.panoramio.com/photo/90325235...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029191449/http://www.panoramio.com/photo/90325086...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028140951/http://www.panoramio.com/photo/90481792...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029134418/http://www.panoramio.com/photo/90479404...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030165801/http://www.panoramio.com/photo/90478648...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029181632/http://www.panoramio.com/photo/90479285...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031062534/http://www.panoramio.com/photo/106881779 determination method...