English operator: Panoramio described at URL: https://web.archive.org/web/20161114143656/http://www.panoramio.com/photo/49196995...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025214302/http://www.panoramio.com/photo/80271324...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013034639/http://www.panoramio.com/photo/17362769 determination method...
archive.org/web/20161027004604/http://www.panoramio.com/user/828011?with_photo_id=80271296 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161101144718/http://www.panoramio.com/user/6976872?with_photo_id=115458427 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161102022718/http://www.panoramio.com/user/6976872?with_photo_id=115458406 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20170516201921/http://www.panoramio.com/user/6976872?with_photo_id=115458431 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161103181601/http://www.panoramio.com/user/3143229?with_photo_id=133824606 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025141411/http://www.panoramio.com/user/6134183?with_photo_id=83930833 operator: Panoramio described at URL: https://web.archive...