English operator: Panoramio described at URL: https://web.archive.org/web/20161101193604/http://www.panoramio.com/photo/126236909...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030145056/http://www.panoramio.com/photo/126484916...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030203040/http://www.panoramio.com/photo/126236935 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031131347/http://www.panoramio.com/photo/126484938 determination method...