English operator: Panoramio described at URL: https://web.archive.org/web/20161016221925/http://www.panoramio.com/photo/47437807...
English operator: Panoramio described at URL: https://web.archive.org/web/20161018011027/http://www.panoramio.com/photo/42919302...
English operator: Panoramio described at URL: https://web.archive.org/web/20161110143309/http://www.panoramio.com/photo/47647726...
English operator: Panoramio described at URL: https://web.archive.org/web/20161017144835/http://www.panoramio.com/photo/42919887...
English operator: Panoramio described at URL: https://web.archive.org/web/20161110143153/http://www.panoramio.com/photo/47647792...
English operator: Panoramio described at URL: https://web.archive.org/web/20161018014501/http://www.panoramio.com/photo/42919274...
archive.org/web/20161017162153/http://www.panoramio.com/user/3047530?with_photo_id=44854534 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161109193259/http://www.panoramio.com/photo/47438861 determination method...
archive.org/web/20161109194058/http://www.panoramio.com/user/3047530?with_photo_id=47437968 operator: Panoramio described at URL: https://web.archive...