1. BOGOTÁ - Bogotá.gov.co (2010). Available at http://www.bogota.gov.co/portel/ libreria/php/x_frame_detalle.php?id=40580/ Accesed July 2010
2. BRTPC - Bus rapid transit policy center (2007). Available at http://www.gobrt.org/ Transmilenio.html Accesed September 2010
3. Carreño A. (2003). Study of the impact of the new mass transit system Transmilenio on the urban tissue of Bogotá Polytechnic University of Catalonia Catalonia. Available at http://wwwcpsv.upc.es/tesines/resummaus_alfonsocarrero.pdf Accesed September 2010
4. DANE - National Bureau of Statistics DANE (2005). 2005 Census Bogotá D.C.
5. DANE - National Bureau of Statistics DANE (2004). Technical papers on labor market Bogotá D.C.