English operator: Panoramio described at URL: https://web.archive.org/web/20161021173047/http://www.panoramio.com/photo/51054920...
operator: Panoramio described at URL: https://web.archive.org/web/20161021032806/http://www.panoramio.com/photo/61688455 determination method: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161014153456/http://www.panoramio.com/photo/39485203 determination method or standard: SHA-1...
operator: Panoramio described at URL: https://web.archive.org/web/20161023202614/http://www.panoramio.com/photo/64240390 determination method: SHA-1...