1. Beck, U. (1992). Risk society: On the way to an alternative modernity. Sage, Thou-sand Oaks
2. Beck, U. (1999). World risk society. Polity Press, Cambridge.
3. Beck, U. (2009). Critical Theory of World Risk Society: A cosmopolitan vision, Constellations, 16(1):1-20.
4. Busa, A. (2010). City beautiful movement, in Hutchison, R. (Ed.) Encyclopaedia of Urban Studies. Sage
Publications.
5. Childe, V. G. (1950). The urban revolution. Town Planning Review, 21(1), 3.