1. The urban harvest approach as an aid for sustainable urban resource planning;Agudelo-Vera;Journal of Industrial Ecology,2012
2. Changes in nature's balance sheet: Model-based estimates of future worldwide ecosystem services;Alcamo;Ecology and Society,2005
3. European common indicators towards a local sustainability profile,2003
4. Àrea Metropolitana de Barcelona. Dades estadistiques. Medi ambient. (2015). 〈http://www.amb.cat/web/area-metropolitana/dades-estadistiques/medi-ambient〉 Accessed 05.03.15.
5. The path to degrowth in overdeveloped countries in state of the world 2012: Moving toward sustainable prosperity;Assadourian,2012