English operator: Panoramio described at URL: https://web.archive.org/web/20161012071152/http://www.panoramio.com/photo/16681211...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028151616/http://www.panoramio.com/photo/105481355...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027204743/http://www.panoramio.com/photo/105481532 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161028165552/http://www.panoramio.com/photo/105481488 determination method: SHA-1...