archive.org/web/20161103000757/http://www.panoramio.com/user/2353739?with_photo_id=93439477 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161013215152/http://www.panoramio.com/user/3329649?with_photo_id=25268152 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161029132724/http://www.panoramio.com/user/8126514?with_photo_id=102140895 operator: Panoramio described at URL: https://web.archive...
php/digithum/article/view/n14-rodriguez-gonzalez-sierra-navarro-saorin Author Emilio José Rodríguez Posada, Ángel González Berdasco, Jorge A. Sierra Canduela, Santiago...
archive.org/web/20161028115416/http://www.panoramio.com/user/6976872?with_photo_id=100033024 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161029080401/http://www.panoramio.com/user/2353739?with_photo_id=93439437 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028115343/http://www.panoramio.com/user/6976872?with_photo_id=100033021 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025161614/http://www.panoramio.com/user/7594877?with_photo_id=88346036 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025152655/http://www.panoramio.com/user/7594877?with_photo_id=88346017 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161029161948/http://www.panoramio.com/user/2353739?with_photo_id=91995313 operator: Panoramio described at URL: https://web.archive...