English operator: Panoramio described at URL: https://web.archive.org/web/20161030221538/http://www.panoramio.com/photo/113050932...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026195659/http://www.panoramio.com/photo/73340417...
archive.org/web/20161026210716/http://www.panoramio.com/user/1894203?with_photo_id=78607788 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161031180604/http://www.panoramio.com/user/5152111?with_photo_id=112862924 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101215314/http://www.panoramio.com/photo/112894908...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102172527/http://www.panoramio.com/photo/112894887...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101215316/http://www.panoramio.com/photo/112894909...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102172528/http://www.panoramio.com/photo/112894888...
archive.org/web/20161101133352/http://www.panoramio.com/user/5152111?with_photo_id=112894894 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101133437/http://www.panoramio.com/photo/112894891 determination method...