English operator: Panoramio described at URL: https://web.archive.org/web/20161029101259/http://www.panoramio.com/photo/99850095...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027235603/http://www.panoramio.com/photo/103695389 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028152814/http://www.panoramio.com/photo/99544977...