1. Aldekoa Xavier and Ruido Photo. 2017. The Backway . https://reportajes.lavanguardia.com/backway-rutas-migracion-africa/
2. Azoulay, Ariella. 2008. The Civil Contract of Photography. New York: Zone Books.
3. Walled States, Waning Sovereignty
4. Cámara Serge. 2004. The Wall 0/One Night . https://Sergecamara.org/2018/12/18/the-wall-0/
5. Cámara Serge. 2016. Complete Families/Incomplete Families. https://www.arcgis.com/apps/Cascade/index.html?appid=723c3f45c4f6444397108aec47bd7a1d