English operator: Panoramio described at URL: https://web.archive.org/web/20161031141355/http://www.panoramio.com/photo/120094839 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014050404/http://www.panoramio.com/photo/29025913 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031194457/http://www.panoramio.com/photo/124319209 determination method...
archive.org/web/20161019164224/http://www.panoramio.com/user/5156912?with_photo_id=50737773 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161023213653/http://www.panoramio.com/user/5156912?with_photo_id=50733199 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161023185536/http://www.panoramio.com/user/2412002?with_photo_id=57273190 operator: Panoramio described at URL: https://web.archive...