English operator: Panoramio described at URL: https://web.archive.org/web/20161101072926/http://www.panoramio.com/photo/126992729...
archive.org/web/20161101234633/http://www.panoramio.com/user/4624801?with_photo_id=110042510 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027180801/http://www.panoramio.com/photo/107407541 determination method...
archive.org/web/20161031030224/http://www.panoramio.com/user/4624801?with_photo_id=121789139 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161030080427/http://www.panoramio.com/user/2353739?with_photo_id=99465633 operator: Panoramio described at URL: https://web.archive...