English operator: Panoramio described at URL: https://web.archive.org/web/20161027203735/http://www.panoramio.com/photo/97986079...
English operator: Panoramio described at URL: https://web.archive.org/web/20170329014702/http://www.panoramio.com/photo/9722922...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012093446/http://www.panoramio.com/photo/10609641...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029105132/http://www.panoramio.com/photo/95213482...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027193227/http://www.panoramio.com/photo/100934382...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030063522/http://www.panoramio.com/photo/95213530...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030202220/http://www.panoramio.com/photo/114553643 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014232106/http://www.panoramio.com/photo/39851036...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029095655/http://www.panoramio.com/photo/95213553...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014015111/http://www.panoramio.com/photo/29046955...