English operator: Panoramio described at URL: https://web.archive.org/web/20161101172838/http://www.panoramio.com/photo/118784956 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101172727/http://www.panoramio.com/photo/118784952 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031042422/http://www.panoramio.com/photo/118784983 determination method...