English operator: Panoramio described at URL: https://web.archive.org/web/20161030034911/http://www.panoramio.com/photo/109245412...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102194151/http://www.panoramio.com/photo/123979726...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027193253/http://www.panoramio.com/photo/109245294...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102193131/http://www.panoramio.com/photo/123979722 determination method...
archive.org/web/20161014023337/http://www.panoramio.com/user/596286?with_photo_id=28609277 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025145305/http://www.panoramio.com/user/4001517?with_photo_id=77691057 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161029215325/http://www.panoramio.com/user/3869135?with_photo_id=100749216 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161101065014/http://www.panoramio.com/user/801668?with_photo_id=123041859 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161031191639/http://www.panoramio.com/user/801668?with_photo_id=123041800 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028120149/http://www.panoramio.com/user/207803?with_photo_id=109321025 operator: Panoramio described at URL: https://web.archive...