English operator: Panoramio described at URL: https://web.archive.org/web/20161029172140/http://www.panoramio.com/photo/106990123 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102113205/http://www.panoramio.com/photo/106992209 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025155131/http://www.panoramio.com/photo/74275926 determination method...
archive.org/web/20161020051936/http://www.panoramio.com/user/4645711?with_photo_id=60633453 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161018010949/http://www.panoramio.com/user/1035107?with_photo_id=47021105 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161022112946/http://www.panoramio.com/user/4645711?with_photo_id=60633087 operator: Panoramio described at URL: https://web.archive...