English operator: Panoramio described at URL: https://web.archive.org/web/20161025010500/http://www.panoramio.com/photo/83495181...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012225736/http://www.panoramio.com/photo/14362612 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161019145337/http://www.panoramio.com/photo/54460855 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013143310/http://www.panoramio.com/photo/27979626...
English operator: Panoramio described at URL: https://web.archive.org/web/20161022010734/http://www.panoramio.com/photo/54461219 determination method...