English operator: Panoramio described at URL: https://web.archive.org/web/20161019145044/http://www.panoramio.com/photo/55049505...
English operator: Panoramio described at URL: https://web.archive.org/web/20161021125600/http://www.panoramio.com/photo/59789440...
archive.org/web/20161031221331/http://www.panoramio.com/user/3482812?with_photo_id=111125778 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030143950/http://www.panoramio.com/photo/119391795...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028200338/http://www.panoramio.com/photo/105160874...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024215409/http://www.panoramio.com/photo/73954322 determination method...
archive.org/web/20161023191825/http://www.panoramio.com/user/3794713?with_photo_id=53364834 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161114132129/http://www.panoramio.com/photo/42253024...
archive.org/web/20161021065012/http://www.panoramio.com/user/5239458?with_photo_id=66457575 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161020124401/http://www.panoramio.com/user/5239458?with_photo_id=66457601 operator: Panoramio described at URL: https://web.archive...