English operator: Panoramio described at URL: https://web.archive.org/web/20161101150938/http://www.panoramio.com/photo/112514295...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031033732/http://www.panoramio.com/photo/112514193...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031133212/http://www.panoramio.com/photo/112514167...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016184449/http://www.panoramio.com/photo/40724996 determination method...
archive.org/web/20161017224535/http://www.panoramio.com/user/1061089?with_photo_id=40724943 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161017225321/http://www.panoramio.com/user/1061089?with_photo_id=40724985 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161017195032/http://www.panoramio.com/user/1061089?with_photo_id=40724974 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161012233355/http://www.panoramio.com/user/1066424?with_photo_id=12614340 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161103023505/http://www.panoramio.com/user/744003?with_photo_id=110552124 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161031195011/http://www.panoramio.com/user/744003?with_photo_id=110552149 operator: Panoramio described at URL: https://web.archive...