English operator: Panoramio described at URL: https://web.archive.org/web/20161101090055/http://www.panoramio.com/photo/112652059...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102132108/http://www.panoramio.com/photo/56563413...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101054822/http://www.panoramio.com/photo/112824272...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028223900/http://www.panoramio.com/photo/98359017...
archive.org/web/20161025043535/http://www.panoramio.com/user/1320307?with_photo_id=88495119 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161013085252/http://www.panoramio.com/user/2532373?with_photo_id=18263787 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023234337/http://www.panoramio.com/photo/61396658...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029005828/http://www.panoramio.com/photo/90658507 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161015084934/http://www.panoramio.com/photo/39680480 determination method...
archive.org/web/20161029085228/http://www.panoramio.com/user/5758309?with_photo_id=92500930 operator: Panoramio described at URL: https://web.archive...