Worldwide Conference on the Right to Cities Free from Discrimination and Inequality, Porto Alegre( Brazil), February, 2002. Environment and Planning A, vol. International Journal of Urban Regional Research, vol. Writings on Cities, Oxford, Blackwell, 1996. Social Justice and the environment for Public Space. Environment and Planning A, RAM eighth use of GeoJournal, vol. Staeheli, Lorraine Dowler, and Doris Wastl-Walter.